1250970990 has 16 divisors (see below), whose sum is σ = 3002330448. Its totient is φ = 333592256.

The previous prime is 1250970979. The next prime is 1250971013. The reversal of 1250970990 is 990790521.

It is a congruent number.

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, 20849487 + ... + 20849546.

It is an arithmetic number, because the mean of its divisors is an integer number (187645653).

Almost surely, 2^1250970990 is an apocalyptic number.

1250970990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250970990 is an abundant number, since it is smaller than the sum of its proper divisors (1751359458).

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

1250970990 is a wasteful number, since it uses less digits than its factorization.

1250970990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41699043.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 1250970990 is about 35369.0682659298. The cubic root of 1250970990 is about 1077.4961974302.

The spelling of 1250970990 in words is "one billion, two hundred fifty million, nine hundred seventy thousand, nine hundred ninety".