990102594 has 32 divisors (see below), whose sum is σ = 2135246400. Its totient is φ = 304258752.

The previous prime is 990102569. The next prime is 990102599. The reversal of 990102594 is 495201099.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (990102599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56832 + ... + 72180.

It is an arithmetic number, because the mean of its divisors is an integer number (66726450).

Almost surely, 2^990102594 is an apocalyptic number.

990102594 is an abundant number, since it is smaller than the sum of its proper divisors (1145143806).

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

990102594 is a wasteful number, since it uses less digits than its factorization.

990102594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16194.

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

The square root of 990102594 is about 31465.8957285503. The cubic root of 990102594 is about 996.6899201270.

The spelling of 990102594 in words is "nine hundred ninety million, one hundred two thousand, five hundred ninety-four".