29749434500 has 48 divisors (see below), whose sum is σ = 65862883632. Its totient is φ = 11736748800.

The previous prime is 29749434499. The next prime is 29749434511. The reversal of 29749434500 is 543494792.

It can be written as a sum of positive squares in 8 ways, for example, as 2305536256 + 27443898244 = 48016^2 + 165662^2 .

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, 371027 + ... + 444026.

It is an arithmetic number, because the mean of its divisors is an integer number (1372143409).

Almost surely, 2^29749434500 is an apocalyptic number.

29749434500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29749434500 is an abundant number, since it is smaller than the sum of its proper divisors (36113449132).

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

29749434500 is a wasteful number, since it uses less digits than its factorization.

29749434500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815145 (or 815133 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 29749434500 in words is "twenty-nine billion, seven hundred forty-nine million, four hundred thirty-four thousand, five hundred".