29490147 has 48 divisors (see below), whose sum is σ = 47424000. Its totient is φ = 17589312.

The previous prime is 29490143. The next prime is 29490173. The reversal of 29490147 is 74109492.

29490147 is a `hidden beast` number, since 29 + 490 + 147 = 666.

It is not a de Polignac number, because 29490147 - 2² = 29490143 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (29490143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 373254 + ... + 373332.

It is an arithmetic number, because the mean of its divisors is an integer number (988000).

Almost surely, 2^29490147 is an apocalyptic number.

29490147 is a deficient number, since it is larger than the sum of its proper divisors (17933853).

29490147 is a wasteful number, since it uses less digits than its factorization.

29490147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 29490147 is about 5430.4831276784. The cubic root of 29490147 is about 308.9529258732.

Subtracting from 29490147 its product of nonzero digits (18144), we obtain a triangular number (29472003 = T₇₆₇₇).

The spelling of 29490147 in words is "twenty-nine million, four hundred ninety thousand, one hundred forty-seven".