1264654032 has 20 divisors (see below), whose sum is σ = 3267023040. Its totient is φ = 421551328.

The previous prime is 1264654019. The next prime is 1264654049. The reversal of 1264654032 is 2304564621.

It is a junction number, because it is equal to n+sod(n) for n = 1264653984 and 1264654002.

It is a congruent number.

It is an unprimeable number.

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, 13173432 + ... + 13173527.

It is an arithmetic number, because the mean of its divisors is an integer number (163351152).

Almost surely, 2^1264654032 is an apocalyptic number.

1264654032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1264654032 is an abundant number, since it is smaller than the sum of its proper divisors (2002369008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264654032 is a wasteful number, since it uses less digits than its factorization.

1264654032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26346970 (or 26346964 counting only the distinct ones).

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

The square root of 1264654032 is about 35561.9745233585. The cubic root of 1264654032 is about 1081.4104890491.

The spelling of 1264654032 in words is "one billion, two hundred sixty-four million, six hundred fifty-four thousand, thirty-two".