29920312 has 8 divisors (see below), whose sum is σ = 56100600. Its totient is φ = 14960152.

The previous prime is 29920279. The next prime is 29920337. The reversal of 29920312 is 21302992.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1870012 + ... + 1870027.

It is an arithmetic number, because the mean of its divisors is an integer number (7012575).

Almost surely, 2^29920312 is an apocalyptic number.

It is an amenable number.

29920312 is a deficient number, since it is larger than the sum of its proper divisors (26180288).

29920312 is a wasteful number, since it uses less digits than its factorization.

29920312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740045 (or 3740041 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 29920312 is about 5469.9462520211. The cubic root of 29920312 is about 310.4478853657.

The spelling of 29920312 in words is "twenty-nine million, nine hundred twenty thousand, three hundred twelve".