1264642929 has 16 divisors (see below), whose sum is σ = 2043867840. Its totient is φ = 766450080.

The previous prime is 1264642913. The next prime is 1264642963. The reversal of 1264642929 is 9292464621.

1264642929 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1264642929 - 2⁴ = 1264642913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264642829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2128732 + ... + 2129325.

It is an arithmetic number, because the mean of its divisors is an integer number (127741740).

Almost surely, 2^1264642929 is an apocalyptic number.

It is an amenable number.

1264642929 is a deficient number, since it is larger than the sum of its proper divisors (779224911).

1264642929 is a wasteful number, since it uses less digits than its factorization.

1264642929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258077 (or 4258071 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 1264642929 is about 35561.8184152611. The cubic root of 1264642929 is about 1081.4073243007.

The spelling of 1264642929 in words is "one billion, two hundred sixty-four million, six hundred forty-two thousand, nine hundred twenty-nine".