401245624 has 32 divisors (see below), whose sum is σ = 838152000. Its totient is φ = 178803072.

The previous prime is 401245609. The next prime is 401245643. The reversal of 401245624 is 426542104.

It is a junction number, because it is equal to n+sod(n) for n = 401245592 and 401245601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63504 + ... + 69535.

It is an arithmetic number, because the mean of its divisors is an integer number (26192250).

Almost surely, 2^401245624 is an apocalyptic number.

It is an amenable number.

401245624 is an abundant number, since it is smaller than the sum of its proper divisors (436906376).

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

401245624 is a wasteful number, since it uses less digits than its factorization.

401245624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133087 (or 133083 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 401245624 is about 20031.1163942502. The cubic root of 401245624 is about 737.5703268758.

Adding to 401245624 its reverse (426542104), we get a palindrome (827787728).

The spelling of 401245624 in words is "four hundred one million, two hundred forty-five thousand, six hundred twenty-four".