401352420 has 48 divisors (see below), whose sum is σ = 1284329088. Its totient is φ = 91737600.

The previous prime is 401352407. The next prime is 401352433. The reversal of 401352420 is 24253104.

It is an interprime number because it is at equal distance from previous prime (401352407) and next prime (401352433).

It is a super-2 number, since 2×401352420² = 322167530079712800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 477381 + ... + 478220.

It is an arithmetic number, because the mean of its divisors is an integer number (26756856).

Almost surely, 2^401352420 is an apocalyptic number.

It is an amenable number.

401352420 is an abundant number, since it is smaller than the sum of its proper divisors (882976668).

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

401352420 is a wasteful number, since it uses less digits than its factorization.

401352420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955620 (or 955618 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 401352420 is about 20033.7819694635. The cubic root of 401352420 is about 737.6357585952.

The spelling of 401352420 in words is "four hundred one million, three hundred fifty-two thousand, four hundred twenty".