400970365 has 16 divisors (see below), whose sum is σ = 498461040. Its totient is φ = 309422080.

The previous prime is 400970363. The next prime is 400970413. The reversal of 400970365 is 563079004.

It can be written as a sum of positive squares in 8 ways, for example, as 104407524 + 296562841 = 10218^2 + 17221^2 .

It is not a de Polignac number, because 400970365 - 2¹ = 400970363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400970365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400970363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7257 + ... + 29233.

It is an arithmetic number, because the mean of its divisors is an integer number (31153815).

Almost surely, 2^400970365 is an apocalyptic number.

It is an amenable number.

400970365 is a deficient number, since it is larger than the sum of its proper divisors (97490675).

400970365 is a wasteful number, since it uses less digits than its factorization.

400970365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22112.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 400970365 is about 20024.2444301901. The cubic root of 400970365 is about 737.4016277869.

The spelling of 400970365 in words is "four hundred million, nine hundred seventy thousand, three hundred sixty-five".