74240307 has 20 divisors (see below), whose sum is σ = 113267616. Its totient is φ = 48438000.

The previous prime is 74240273. The next prime is 74240311. The reversal of 74240307 is 70304247.

It is not a de Polignac number, because 74240307 - 2¹¹ = 74238259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (74240347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5944 + ... + 13557.

Almost surely, 2^74240307 is an apocalyptic number.

74240307 is a deficient number, since it is larger than the sum of its proper divisors (39027309).

74240307 is a wasteful number, since it uses less digits than its factorization.

74240307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19560 (or 19551 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 74240307 is about 8616.2815065433. The cubic root of 74240307 is about 420.2876091275.

It can be divided in two parts, 74240 and 307, that added together give a palindrome (74547).

The spelling of 74240307 in words is "seventy-four million, two hundred forty thousand, three hundred seven".