401614388 has 36 divisors (see below), whose sum is σ = 845776260. Its totient is φ = 166182912.

The previous prime is 401614387. The next prime is 401614471. The reversal of 401614388 is 883416104.

It can be written as a sum of positive squares in 2 ways, for example, as 310182544 + 91431844 = 17612^2 + 9562^2 .

It is a super-2 number, since 2×401614388² = 322588233297229088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401614387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29645 + ... + 41012.

It is an arithmetic number, because the mean of its divisors is an integer number (23493785).

Almost surely, 2^401614388 is an apocalyptic number.

It is an amenable number.

401614388 is an abundant number, since it is smaller than the sum of its proper divisors (444161872).

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

401614388 is a wasteful number, since it uses less digits than its factorization.

401614388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70704 (or 70695 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 401614388 is about 20040.3190593364. The cubic root of 401614388 is about 737.7962118754.

The spelling of 401614388 in words is "four hundred one million, six hundred fourteen thousand, three hundred eighty-eight".