3528400491 has 192 divisors, whose sum is σ = 7130972160. Its totient is φ = 1625184000.

The previous prime is 3528400483. The next prime is 3528400531. The reversal of 3528400491 is 1940048253.

3528400491 is a `hidden beast` number, since 3 + 528 + 40 + 0 + 4 + 91 = 666.

It is not a de Polignac number, because 3528400491 - 2³ = 3528400483 is a prime.

It is a super-2 number, since 2×3528400491² = 24899220049778082162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3528400411) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 18473206 + ... + 18473396.

It is an arithmetic number, because the mean of its divisors is an integer number (37140480).

Almost surely, 2^3528400491 is an apocalyptic number.

3528400491 is an abundant number, since it is smaller than the sum of its proper divisors (3602571669).

3528400491 is a wasteful number, since it uses less digits than its factorization.

3528400491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3528400491 is about 59400.3408323555. The cubic root of 3528400491 is about 1522.3901239998.

The spelling of 3528400491 in words is "three billion, five hundred twenty-eight million, four hundred thousand, four hundred ninety-one".