1520292990 has 48 divisors (see below), whose sum is σ = 3678013584. Its totient is φ = 402180480.

The previous prime is 1520292971. The next prime is 1520293007. The reversal of 1520292990 is 992920251.

It is a super-2 number, since 2×1520292990² = 4622581550886280200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513354 + ... + 516306.

It is an arithmetic number, because the mean of its divisors is an integer number (76625283).

Almost surely, 2^1520292990 is an apocalyptic number.

1520292990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520292990 is an abundant number, since it is smaller than the sum of its proper divisors (2157720594).

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

1520292990 is a wasteful number, since it uses less digits than its factorization.

1520292990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 1520292990 is about 38990.9347156490. The cubic root of 1520292990 is about 1149.8532868917.

The spelling of 1520292990 in words is "one billion, five hundred twenty million, two hundred ninety-two thousand, nine hundred ninety".