29870136 has 48 divisors (see below), whose sum is σ = 81151200. Its totient is φ = 9925632.

The previous prime is 29870131. The next prime is 29870149. The reversal of 29870136 is 63107892.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 29870136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29870131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41185 + ... + 41903.

It is an arithmetic number, because the mean of its divisors is an integer number (1690650).

Almost surely, 2^29870136 is an apocalyptic number.

It is an amenable number.

29870136 is an abundant number, since it is smaller than the sum of its proper divisors (51281064).

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

29870136 is a wasteful number, since it uses less digits than its factorization.

29870136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 29870136 is about 5465.3578107934. The cubic root of 29870136 is about 310.2742491559.

The spelling of 29870136 in words is "twenty-nine million, eight hundred seventy thousand, one hundred thirty-six".