1268634652 has 12 divisors (see below), whose sum is σ = 2236083640. Its totient is φ = 629753616.

The previous prime is 1268634641. The next prime is 1268634671. The reversal of 1268634652 is 2564368621.

It is a super-2 number, since 2×1268634652² = 3218867760510322208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1268634599 and 1268634608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140303 + ... + 1141414.

Almost surely, 2^1268634652 is an apocalyptic number.

It is an amenable number.

1268634652 is a deficient number, since it is larger than the sum of its proper divisors (967448988).

1268634652 is a wasteful number, since it uses less digits than its factorization.

1268634652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281860 (or 2281858 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 1268634652 is about 35617.8979166374. The cubic root of 1268634652 is about 1082.5439151415.

The spelling of 1268634652 in words is "one billion, two hundred sixty-eight million, six hundred thirty-four thousand, six hundred fifty-two".