1292870680 has 32 divisors (see below), whose sum is σ = 2976613200. Its totient is φ = 505120896.

The previous prime is 1292870653. The next prime is 1292870681. The reversal of 1292870680 is 860782921.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292870681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374115 + ... + 377554.

Almost surely, 2^1292870680 is an apocalyptic number.

1292870680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1292870680 is an abundant number, since it is smaller than the sum of its proper divisors (1683742520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1292870680 is a wasteful number, since it uses less digits than its factorization.

1292870680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751723 (or 751719 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1292870680 is about 35956.5109542069. The cubic root of 1292870680 is about 1089.3941250333.

The spelling of 1292870680 in words is "one billion, two hundred ninety-two million, eight hundred seventy thousand, six hundred eighty".