74207245 has 8 divisors (see below), whose sum is σ = 101769984. Its totient is φ = 50884944.

The previous prime is 74207239. The next prime is 74207249. The reversal of 74207245 is 54270247.

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

It is a cyclic number.

It is not a de Polignac number, because 74207245 - 2¹⁷ = 74076173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74207249) 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, 1060069 + ... + 1060138.

It is an arithmetic number, because the mean of its divisors is an integer number (12721248).

Almost surely, 2^74207245 is an apocalyptic number.

It is an amenable number.

74207245 is a deficient number, since it is larger than the sum of its proper divisors (27562739).

74207245 is a wasteful number, since it uses less digits than its factorization.

74207245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120219.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 74207245 is about 8614.3627158368. The cubic root of 74207245 is about 420.2252099055.

The spelling of 74207245 in words is "seventy-four million, two hundred seven thousand, two hundred forty-five".