29939402 has 8 divisors (see below), whose sum is σ = 47272800. Its totient is φ = 14181804.

The previous prime is 29939387. The next prime is 29939411. The reversal of 29939402 is 20493992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 787879 = 29939402 / (2 + 9 + 9 + 3 + 9 + 4 + 0 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393902 + ... + 393977.

It is an arithmetic number, because the mean of its divisors is an integer number (5909100).

Almost surely, 2^29939402 is an apocalyptic number.

29939402 is a deficient number, since it is larger than the sum of its proper divisors (17333398).

29939402 is a wasteful number, since it uses less digits than its factorization.

29939402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787900.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 29939402 is about 5471.6909634957. The cubic root of 29939402 is about 310.5138961543.

The spelling of 29939402 in words is "twenty-nine million, nine hundred thirty-nine thousand, four hundred two".