29820772 has 6 divisors (see below), whose sum is σ = 52186358. Its totient is φ = 14910384.

The previous prime is 29820767. The next prime is 29820773. The reversal of 29820772 is 27702892.

It can be written as a sum of positive squares in only one way, i.e., 22335076 + 7485696 = 4726^2 + 2736^2 .

It is not an unprimeable number, because it can be changed into a prime (29820773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3727593 + ... + 3727600.

Almost surely, 2^29820772 is an apocalyptic number.

It is an amenable number.

29820772 is a deficient number, since it is larger than the sum of its proper divisors (22365586).

29820772 is a wasteful number, since it uses less digits than its factorization.

29820772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7455197 (or 7455195 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 29820772 is about 5460.8398621457. The cubic root of 29820772 is about 310.1032330483.

The spelling of 29820772 in words is "twenty-nine million, eight hundred twenty thousand, seven hundred seventy-two".