29139492 has 12 divisors (see below), whose sum is σ = 67992176. Its totient is φ = 9713160.

The previous prime is 29139491. The next prime is 29139493. The reversal of 29139492 is 29493192.

It is an interprime number because it is at equal distance from previous prime (29139491) and next prime (29139493).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 29139492.

It is not an unprimeable number, because it can be changed into a prime (29139491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214134 + ... + 1214157.

Almost surely, 2^29139492 is an apocalyptic number.

It is an amenable number.

29139492 is an abundant number, since it is smaller than the sum of its proper divisors (38852684).

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

29139492 is a wasteful number, since it uses less digits than its factorization.

29139492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428298 (or 2428296 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 29139492 is about 5398.1007771252. The cubic root of 29139492 is about 307.7234967166.

The spelling of 29139492 in words is "twenty-nine million, one hundred thirty-nine thousand, four hundred ninety-two".