401351976 has 64 divisors (see below), whose sum is σ = 1131547200. Its totient is φ = 131782464.

The previous prime is 401351969. The next prime is 401351999. The reversal of 401351976 is 679153104.

It is a super-2 number, since 2×401351976² = 322166817278209152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 401351976.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606 + ... + 28338.

It is an arithmetic number, because the mean of its divisors is an integer number (17680425).

Almost surely, 2^401351976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401351976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565773600).

401351976 is an abundant number, since it is smaller than the sum of its proper divisors (730195224).

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

401351976 is a wasteful number, since it uses less digits than its factorization.

401351976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27815 (or 27805 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 401351976 is about 20033.7708881778. The cubic root of 401351976 is about 737.6354865895.

The spelling of 401351976 in words is "four hundred one million, three hundred fifty-one thousand, nine hundred seventy-six".