1090399308020 has 48 divisors (see below), whose sum is σ = 2498259044736. Its totient is φ = 396468624000.

The previous prime is 1090399308013. The next prime is 1090399308083. The reversal of 1090399308020 is 208039930901.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1967105 + ... + 2459735.

It is an arithmetic number, because the mean of its divisors is an integer number (52047063432).

Almost surely, 2^{1090399308020} is an apocalyptic number.

1090399308020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090399308020 is an abundant number, since it is smaller than the sum of its proper divisors (1407859736716).

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

1090399308020 is a wasteful number, since it uses less digits than its factorization.

1090399308020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502712 (or 502710 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 1090399308020 in words is "one trillion, ninety billion, three hundred ninety-nine million, three hundred eight thousand, twenty".