1093149990 has 48 divisors (see below), whose sum is σ = 2991783600. Its totient is φ = 276163776.

The previous prime is 1093149979. The next prime is 1093150007. The reversal of 1093149990 is 999413901.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317925 + ... + 321344.

It is an arithmetic number, because the mean of its divisors is an integer number (62328825).

Almost surely, 2^1093149990 is an apocalyptic number.

1093149990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1093149990 is an abundant number, since it is smaller than the sum of its proper divisors (1898633610).

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

1093149990 is a wasteful number, since it uses less digits than its factorization.

1093149990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639301 (or 639298 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 1093149990 is about 33062.8188453435. The cubic root of 1093149990 is about 1030.1328857362.

The spelling of 1093149990 in words is "one billion, ninety-three million, one hundred forty-nine thousand, nine hundred ninety".