401544552 has 16 divisors (see below), whose sum is σ = 1003861440. Its totient is φ = 133848176.

The previous prime is 401544551. The next prime is 401544553. The reversal of 401544552 is 255445104.

It is an interprime number because it is at equal distance from previous prime (401544551) and next prime (401544553).

It is a super-2 number, since 2×401544552² = 322476054481761408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401544551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8365488 + ... + 8365535.

It is an arithmetic number, because the mean of its divisors is an integer number (62741340).

Almost surely, 2^401544552 is an apocalyptic number.

It is an amenable number.

401544552 is an abundant number, since it is smaller than the sum of its proper divisors (602316888).

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

401544552 is a wasteful number, since it uses less digits than its factorization.

401544552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16731032 (or 16731028 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 401544552 is about 20038.5765961557. The cubic root of 401544552 is about 737.7534447131.

Adding to 401544552 its reverse (255445104), we get a palindrome (656989656).

The spelling of 401544552 in words is "four hundred one million, five hundred forty-four thousand, five hundred fifty-two".