29999002590 has 128 divisors (see below), whose sum is σ = 82988236800. Its totient is φ = 7705601280.

The previous prime is 29999002577. The next prime is 29999002619. The reversal of 29999002590 is 9520099992.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 857379 + ... + 891681.

It is an arithmetic number, because the mean of its divisors is an integer number (648345600).

Almost surely, 2^29999002590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29999002590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41494118400).

29999002590 is an abundant number, since it is smaller than the sum of its proper divisors (52989234210).

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

29999002590 is a wasteful number, since it uses less digits than its factorization.

29999002590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34439 (or 34433 counting only the distinct ones).

The product of its (nonzero) digits is 1180980, while the sum is 54.

The spelling of 29999002590 in words is "twenty-nine billion, nine hundred ninety-nine million, two thousand, five hundred ninety".