1269260428 has 24 divisors (see below), whose sum is σ = 2355786720. Its totient is φ = 597083520.

The previous prime is 1269260357. The next prime is 1269260431. The reversal of 1269260428 is 8240629621.

It is a super-2 number, since 2×1269260428² = 3222044068173486368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107473 + ... + 118696.

It is an arithmetic number, because the mean of its divisors is an integer number (98157780).

Almost surely, 2^1269260428 is an apocalyptic number.

It is an amenable number.

1269260428 is a deficient number, since it is larger than the sum of its proper divisors (1086526292).

1269260428 is a wasteful number, since it uses less digits than its factorization.

1269260428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226257 (or 226255 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1269260428 is about 35626.6814059351. The cubic root of 1269260428 is about 1082.7218803910.

The spelling of 1269260428 in words is "one billion, two hundred sixty-nine million, two hundred sixty thousand, four hundred twenty-eight".