407472251 has 4 divisors (see below), whose sum is σ = 407559504. Its totient is φ = 407385000.

The previous prime is 407472229. The next prime is 407472313. The reversal of 407472251 is 152274704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 407472251 - 2²² = 403277947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407472451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36200 + ... + 46101.

It is an arithmetic number, because the mean of its divisors is an integer number (101889876).

Almost surely, 2^407472251 is an apocalyptic number.

407472251 is a deficient number, since it is larger than the sum of its proper divisors (87253).

407472251 is an equidigital number, since it uses as much as digits as its factorization.

407472251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87252.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 407472251 is about 20185.9419151052. The cubic root of 407472251 is about 741.3660250043.

The spelling of 407472251 in words is "four hundred seven million, four hundred seventy-two thousand, two hundred fifty-one".