401502387 has 16 divisors (see below), whose sum is σ = 628927488. Its totient is φ = 224616480.

The previous prime is 401502383. The next prime is 401502389. The reversal of 401502387 is 783205104.

It is not a de Polignac number, because 401502387 - 2² = 401502383 is a prime.

It is a super-2 number, since 2×401502387² = 322408333533395538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401502383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467523 + ... + 468380.

It is an arithmetic number, because the mean of its divisors is an integer number (39307968).

Almost surely, 2^401502387 is an apocalyptic number.

401502387 is a deficient number, since it is larger than the sum of its proper divisors (227425101).

401502387 is a wasteful number, since it uses less digits than its factorization.

401502387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935930.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 401502387 is about 20037.5244728484. The cubic root of 401502387 is about 737.7276207103.

The spelling of 401502387 in words is "four hundred one million, five hundred two thousand, three hundred eighty-seven".