1264157416 has 16 divisors (see below), whose sum is σ = 2370854340. Its totient is φ = 631929600.

The previous prime is 1264157413. The next prime is 1264157443. The reversal of 1264157416 is 6147514621.

It can be written as a sum of positive squares in 2 ways, for example, as 1173336516 + 90820900 = 34254^2 + 9530^2 .

It is not an unprimeable number, because it can be changed into a prime (1264157413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22816 + ... + 55216.

Almost surely, 2^1264157416 is an apocalyptic number.

It is an amenable number.

1264157416 is a deficient number, since it is larger than the sum of its proper divisors (1106696924).

1264157416 is a wasteful number, since it uses less digits than its factorization.

1264157416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37284 (or 37280 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 1264157416 is about 35554.9914358027. The cubic root of 1264157416 is about 1081.2689177707.

The spelling of 1264157416 in words is "one billion, two hundred sixty-four million, one hundred fifty-seven thousand, four hundred sixteen".