74765345 has 16 divisors (see below), whose sum is σ = 94400208. Its totient is φ = 56770560.

The previous prime is 74765311. The next prime is 74765381. The reversal of 74765345 is 54356747.

It can be written as a sum of positive squares in 8 ways, for example, as 2719201 + 72046144 = 1649^2 + 8488^2 .

It is not a de Polignac number, because 74765345 - 2¹² = 74761249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2657 + ... + 12513.

It is an arithmetic number, because the mean of its divisors is an integer number (5900013).

Almost surely, 2^74765345 is an apocalyptic number.

It is an amenable number.

74765345 is a deficient number, since it is larger than the sum of its proper divisors (19634863).

74765345 is a wasteful number, since it uses less digits than its factorization.

74765345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940.

The product of its digits is 352800, while the sum is 41.

The square root of 74765345 is about 8646.6956116195. The cubic root of 74765345 is about 421.2760605174.

It can be divided in two parts, 7476 and 5345, that added together give a palindrome (12821).

The spelling of 74765345 in words is "seventy-four million, seven hundred sixty-five thousand, three hundred forty-five".