1434401020 has 72 divisors (see below), whose sum is σ = 3301721136. Its totient is φ = 523141632.

The previous prime is 1434400973. The next prime is 1434401021. The reversal of 1434401020 is 201044341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1434401021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277984 + ... + 283096.

It is an arithmetic number, because the mean of its divisors is an integer number (45857238).

Almost surely, 2^1434401020 is an apocalyptic number.

1434401020 is a gapful number since it is divisible by the number (10) 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 1434401020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650860568).

1434401020 is an abundant number, since it is smaller than the sum of its proper divisors (1867320116).

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

1434401020 is a wasteful number, since it uses less digits than its factorization.

1434401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1434401020 is about 37873.4870324875. The cubic root of 1434401020 is about 1127.7777664822. Note that the first 4 decimals are identical.

Adding to 1434401020 its reverse (201044341), we get a palindrome (1635445361).

The spelling of 1434401020 in words is "one billion, four hundred thirty-four million, four hundred one thousand, twenty".