401572270 has 64 divisors (see below), whose sum is σ = 818636544. Its totient is φ = 140555520.

The previous prime is 401572261. The next prime is 401572279. The reversal of 401572270 is 72275104.

It is an interprime number because it is at equal distance from previous prime (401572261) and next prime (401572279).

It is a super-2 number, since 2×401572270² = 322520576065905800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401572279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344709 + ... + 345871.

It is an arithmetic number, because the mean of its divisors is an integer number (12791196).

Almost surely, 2^401572270 is an apocalyptic number.

401572270 is an abundant number, since it is smaller than the sum of its proper divisors (417064274).

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

401572270 is a wasteful number, since it uses less digits than its factorization.

401572270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 401572270 is about 20039.2682002113. The cubic root of 401572270 is about 737.7704196493.

The spelling of 401572270 in words is "four hundred one million, five hundred seventy-two thousand, two hundred seventy".