401520546 has 24 divisors (see below), whose sum is σ = 994241664. Its totient is φ = 114720120.

The previous prime is 401520523. The next prime is 401520557. The reversal of 401520546 is 645025104.

It is a super-2 number, since 2×401520546² = 322437497720276232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1593210 + ... + 1593461.

It is an arithmetic number, because the mean of its divisors is an integer number (41426736).

Almost surely, 2^401520546 is an apocalyptic number.

401520546 is an abundant number, since it is smaller than the sum of its proper divisors (592721118).

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

401520546 is a wasteful number, since it uses less digits than its factorization.

401520546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186686 (or 3186683 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 401520546 is about 20037.9775925616. The cubic root of 401520546 is about 737.7387424324.

The spelling of 401520546 in words is "four hundred one million, five hundred twenty thousand, five hundred forty-six".