400615461 has 12 divisors (see below), whose sum is σ = 578889792. Its totient is φ = 266974056.

The previous prime is 400615447. The next prime is 400615471. The reversal of 400615461 is 164516004.

400615461 is a `hidden beast` number, since 4 + 0 + 0 + 615 + 46 + 1 = 666.

It is not a de Polignac number, because 400615461 - 2¹⁴ = 400599077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400615471) 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, 21700 + ... + 35666.

It is an arithmetic number, because the mean of its divisors is an integer number (48240816).

Almost surely, 2^400615461 is an apocalyptic number.

It is an amenable number.

400615461 is a deficient number, since it is larger than the sum of its proper divisors (178274331).

400615461 is a wasteful number, since it uses less digits than its factorization.

400615461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17160 (or 17157 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 400615461 is about 20015.3806109202. The cubic root of 400615461 is about 737.1840023616.

The spelling of 400615461 in words is "four hundred million, six hundred fifteen thousand, four hundred sixty-one".