29970628 has 6 divisors (see below), whose sum is σ = 52448606. Its totient is φ = 14985312.

The previous prime is 29970623. The next prime is 29970637. The reversal of 29970628 is 82607992.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16662724 + 13307904 = 4082^2 + 3648^2 .

It is not an unprimeable number, because it can be changed into a prime (29970623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3746325 + ... + 3746332.

Almost surely, 2^29970628 is an apocalyptic number.

It is an amenable number.

29970628 is a deficient number, since it is larger than the sum of its proper divisors (22477978).

29970628 is a wasteful number, since it uses less digits than its factorization.

29970628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7492661 (or 7492659 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 29970628 is about 5474.5436339479. The cubic root of 29970628 is about 310.6218112238.

The spelling of 29970628 in words is "twenty-nine million, nine hundred seventy thousand, six hundred twenty-eight".