401939452 has 24 divisors (see below), whose sum is σ = 749347200. Its totient is φ = 188095536.

The previous prime is 401939423. The next prime is 401939453. The reversal of 401939452 is 254939104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401939453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25552 + ... + 38167.

It is an arithmetic number, because the mean of its divisors is an integer number (31222800).

Almost surely, 2^401939452 is an apocalyptic number.

It is an amenable number.

401939452 is a deficient number, since it is larger than the sum of its proper divisors (347407748).

401939452 is a wasteful number, since it uses less digits than its factorization.

401939452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63825 (or 63823 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 401939452 is about 20048.4276690218. The cubic root of 401939452 is about 737.9952139681.

The spelling of 401939452 in words is "four hundred one million, nine hundred thirty-nine thousand, four hundred fifty-two".