464015257 has 4 divisors (see below), whose sum is σ = 464357556. Its totient is φ = 463672960.

The previous prime is 464015219. The next prime is 464015281. The reversal of 464015257 is 752510464.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79227801 + 384787456 = 8901^2 + 19616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-464015257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464015287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169108 + ... + 171829.

It is an arithmetic number, because the mean of its divisors is an integer number (116089389).

Almost surely, 2^464015257 is an apocalyptic number.

It is an amenable number.

464015257 is a deficient number, since it is larger than the sum of its proper divisors (342299).

464015257 is a wasteful number, since it uses less digits than its factorization.

464015257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342298.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 464015257 is about 21541.0133698487. The cubic root of 464015257 is about 774.1838133723.

The spelling of 464015257 in words is "four hundred sixty-four million, fifteen thousand, two hundred fifty-seven".