1076665980 has 48 divisors (see below), whose sum is σ = 3246564384. Its totient is φ = 265025280.

The previous prime is 1076665979. The next prime is 1076665987. The reversal of 1076665980 is 895666701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1076665987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 689391 + ... + 690950.

It is an arithmetic number, because the mean of its divisors is an integer number (67636758).

Almost surely, 2^1076665980 is an apocalyptic number.

1076665980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1076665980 is an abundant number, since it is smaller than the sum of its proper divisors (2169898404).

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

1076665980 is a wasteful number, since it uses less digits than its factorization.

1076665980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380366 (or 1380364 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 1076665980 is about 32812.5887427371. The cubic root of 1076665980 is about 1024.9287215951.

The spelling of 1076665980 in words is "one billion, seventy-six million, six hundred sixty-five thousand, nine hundred eighty".