264430651 has 12 divisors (see below), whose sum is σ = 275580480. Its totient is φ = 253463040.

The previous prime is 264430643. The next prime is 264430667. The reversal of 264430651 is 156034462.

It is not a de Polignac number, because 264430651 - 2³ = 264430643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264430351) 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, 1154605 + ... + 1154833.

It is an arithmetic number, because the mean of its divisors is an integer number (22965040).

Almost surely, 2^264430651 is an apocalyptic number.

264430651 is a deficient number, since it is larger than the sum of its proper divisors (11149829).

264430651 is an equidigital number, since it uses as much as digits as its factorization.

264430651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 264430651 is about 16261.3237776019. The cubic root of 264430651 is about 641.8554966678.

The spelling of 264430651 in words is "two hundred sixty-four million, four hundred thirty thousand, six hundred fifty-one".