29457172 has 6 divisors (see below), whose sum is σ = 51550058. Its totient is φ = 14728584.

The previous prime is 29457167. The next prime is 29457173. The reversal of 29457172 is 27175492.

It can be written as a sum of positive squares in only one way, i.e., 23677956 + 5779216 = 4866^2 + 2404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29457173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3682143 + ... + 3682150.

Almost surely, 2^29457172 is an apocalyptic number.

It is an amenable number.

29457172 is a deficient number, since it is larger than the sum of its proper divisors (22092886).

29457172 is a wasteful number, since it uses less digits than its factorization.

29457172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364297 (or 7364295 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 29457172 is about 5427.4461766101. The cubic root of 29457172 is about 308.8377289534.

The spelling of 29457172 in words is "twenty-nine million, four hundred fifty-seven thousand, one hundred seventy-two".