3922591428 has 96 divisors (see below), whose sum is σ = 11636889600. Its totient is φ = 1119352608.

The previous prime is 3922591423. The next prime is 3922591489. The reversal of 3922591428 is 8241952293.

3922591428 is a `hidden beast` number, since 39 + 2 + 2 + 591 + 4 + 28 = 666.

It is a super-2 number, since 2×3922591428² = 30773447022038158368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3922591423) 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, 713193 + ... + 718671.

It is an arithmetic number, because the mean of its divisors is an integer number (121217600).

Almost surely, 2^3922591428 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 3922591428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5818444800).

3922591428 is an abundant number, since it is smaller than the sum of its proper divisors (7714298172).

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

3922591428 is a wasteful number, since it uses less digits than its factorization.

3922591428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446 (or 6438 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 3922591428 is about 62630.5949836021. The cubic root of 3922591428 is about 1577.0944073102.

The spelling of 3922591428 in words is "three billion, nine hundred twenty-two million, five hundred ninety-one thousand, four hundred twenty-eight".