1264546634 has 16 divisors (see below), whose sum is σ = 2150242080. Its totient is φ = 552918960.

The previous prime is 1264546627. The next prime is 1264546639. The reversal of 1264546634 is 4366454621.

It is a junction number, because it is equal to n+sod(n) for n = 1264546591 and 1264546600.

It is not an unprimeable number, because it can be changed into a prime (1264546639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1279412 + ... + 1280399.

It is an arithmetic number, because the mean of its divisors is an integer number (134390130).

Almost surely, 2^1264546634 is an apocalyptic number.

1264546634 is a deficient number, since it is larger than the sum of its proper divisors (885695446).

1264546634 is a wasteful number, since it uses less digits than its factorization.

1264546634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559845.

The product of its digits is 414720, while the sum is 41.

The square root of 1264546634 is about 35560.4644795312. The cubic root of 1264546634 is about 1081.3798760360.

The spelling of 1264546634 in words is "one billion, two hundred sixty-four million, five hundred forty-six thousand, six hundred thirty-four".