1264152928 has 12 divisors (see below), whose sum is σ = 2488801140. Its totient is φ = 632076448.

The previous prime is 1264152913. The next prime is 1264152947. The reversal of 1264152928 is 8292514621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19752358 + ... + 19752421.

It is an arithmetic number, because the mean of its divisors is an integer number (207400095).

Almost surely, 2^1264152928 is an apocalyptic number.

It is an amenable number.

1264152928 is a deficient number, since it is larger than the sum of its proper divisors (1224648212).

1264152928 is an equidigital number, since it uses as much as digits as its factorization.

1264152928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39504789 (or 39504781 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 1264152928 is about 35554.9283222453. The cubic root of 1264152928 is about 1081.2676381989.

The spelling of 1264152928 in words is "one billion, two hundred sixty-four million, one hundred fifty-two thousand, nine hundred twenty-eight".