74672249 has 8 divisors (see below), whose sum is σ = 75767328. Its totient is φ = 73584000.

The previous prime is 74672239. The next prime is 74672263. The reversal of 74672249 is 94227647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74672249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74672239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22814 + ... + 25880.

It is an arithmetic number, because the mean of its divisors is an integer number (9470916).

Almost surely, 2^74672249 is an apocalyptic number.

It is an amenable number.

74672249 is a deficient number, since it is larger than the sum of its proper divisors (1095079).

74672249 is a wasteful number, since it uses less digits than its factorization.

74672249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its digits is 169344, while the sum is 41.

The square root of 74672249 is about 8641.3106066152. The cubic root of 74672249 is about 421.1011336372.

The spelling of 74672249 in words is "seventy-four million, six hundred seventy-two thousand, two hundred forty-nine".