1264230465 has 32 divisors (see below), whose sum is σ = 2095943040. Its totient is φ = 650297856.

The previous prime is 1264230431. The next prime is 1264230469. The reversal of 1264230465 is 5640324621.

It is not a de Polignac number, because 1264230465 - 2¹¹ = 1264228417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264230469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33429 + ... + 60381.

It is an arithmetic number, because the mean of its divisors is an integer number (65498220).

Almost surely, 2^1264230465 is an apocalyptic number.

1264230465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264230465 is a deficient number, since it is larger than the sum of its proper divisors (831712575).

1264230465 is a wasteful number, since it uses less digits than its factorization.

1264230465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27073.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 1264230465 is about 35556.0186888240. The cubic root of 1264230465 is about 1081.2897443152.

The spelling of 1264230465 in words is "one billion, two hundred sixty-four million, two hundred thirty thousand, four hundred sixty-five".