401558382 has 24 divisors (see below), whose sum is σ = 877747104. Its totient is φ = 132667584.

The previous prime is 401558329. The next prime is 401558393. The reversal of 401558382 is 283855104.

It is a happy number.

It is a super-2 number, since 2×401558382² = 322498268308915848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96678 + ... + 100745.

It is an arithmetic number, because the mean of its divisors is an integer number (36572796).

Almost surely, 2^401558382 is an apocalyptic number.

401558382 is an abundant number, since it is smaller than the sum of its proper divisors (476188722).

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

401558382 is a wasteful number, since it uses less digits than its factorization.

401558382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197544 (or 197541 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 401558382 is about 20038.9216775754. The cubic root of 401558382 is about 737.7619145188.

The spelling of 401558382 in words is "four hundred one million, five hundred fifty-eight thousand, three hundred eighty-two".