3431998020 has 144 divisors (see below), whose sum is σ = 10633420224. Its totient is φ = 826425600.

The previous prime is 3431998019. The next prime is 3431998021. The reversal of 3431998020 is 208991343.

It is an interprime number because it is at equal distance from previous prime (3431998019) and next prime (3431998021).

It is a super-2 number, since 2×3431998020² = 23557220818567840800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3431998020.

It is not an unprimeable number, because it can be changed into a prime (3431998021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1138315 + ... + 1141325.

It is an arithmetic number, because the mean of its divisors is an integer number (73843196).

Almost surely, 2^3431998020 is an apocalyptic number.

3431998020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3431998020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5316710112).

3431998020 is an abundant number, since it is smaller than the sum of its proper divisors (7201422204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3431998020 is a wasteful number, since it uses less digits than its factorization.

3431998020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202 (or 3189 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 3431998020 is about 58583.2571644834. The cubic root of 3431998020 is about 1508.3970563584.

The spelling of 3431998020 in words is "three billion, four hundred thirty-one million, nine hundred ninety-eight thousand, twenty".