3420690372 has 96 divisors (see below), whose sum is σ = 9705024000. Its totient is φ = 1033322400.

The previous prime is 3420690359. The next prime is 3420690379. The reversal of 3420690372 is 2730960243.

It is a happy number.

It is a super-2 number, since 2×3420690372² = 23402245242186996768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3420690379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388879 + ... + 397577.

It is an arithmetic number, because the mean of its divisors is an integer number (101094000).

Almost surely, 2^3420690372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420690372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4852512000).

3420690372 is an abundant number, since it is smaller than the sum of its proper divisors (6284333628).

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

3420690372 is a wasteful number, since it uses less digits than its factorization.

3420690372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054 (or 9046 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 3420690372 is about 58486.6683270641. The cubic root of 3420690372 is about 1506.7386259477.

The spelling of 3420690372 in words is "three billion, four hundred twenty million, six hundred ninety thousand, three hundred seventy-two".