1248590990 has 16 divisors (see below), whose sum is σ = 2249311680. Its totient is φ = 499025760.

The previous prime is 1248590983. The next prime is 1248591007. The reversal of 1248590990 is 990958421.

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, 38405 + ... + 63024.

It is an arithmetic number, because the mean of its divisors is an integer number (140581980).

Almost surely, 2^1248590990 is an apocalyptic number.

1248590990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248590990 is a deficient number, since it is larger than the sum of its proper divisors (1000720690).

1248590990 is a wasteful number, since it uses less digits than its factorization.

1248590990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102667.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 1248590990 is about 35335.4070303428. The cubic root of 1248590990 is about 1076.8124435054.

The spelling of 1248590990 in words is "one billion, two hundred forty-eight million, five hundred ninety thousand, nine hundred ninety".