29813992 has 16 divisors (see below), whose sum is σ = 60201540. Its totient is φ = 13760256.

The previous prime is 29813989. The next prime is 29813999. The reversal of 29813992 is 29931892.

It can be written as a sum of positive squares in 2 ways, for example, as 25948836 + 3865156 = 5094^2 + 1966^2 .

It is not an unprimeable number, because it can be changed into a prime (29813999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143233 + ... + 143440.

Almost surely, 2^29813992 is an apocalyptic number.

It is an amenable number.

29813992 is an abundant number, since it is smaller than the sum of its proper divisors (30387548).

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

29813992 is a wasteful number, since it uses less digits than its factorization.

29813992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286692 (or 286688 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 29813992 is about 5460.2190432253. The cubic root of 29813992 is about 310.0797297525.

The spelling of 29813992 in words is "twenty-nine million, eight hundred thirteen thousand, nine hundred ninety-two".