74743506 has 16 divisors (see below), whose sum is σ = 166096800. Its totient is φ = 24914484.

The previous prime is 74743477. The next prime is 74743507. The reversal of 74743506 is 60534747.

It is not an unprimeable number, because it can be changed into a prime (74743507) 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, 692016 + ... + 692123.

It is an arithmetic number, because the mean of its divisors is an integer number (10381050).

Almost surely, 2^74743506 is an apocalyptic number.

74743506 is an abundant number, since it is smaller than the sum of its proper divisors (91353294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74743506 is a wasteful number, since it uses less digits than its factorization.

74743506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384150 (or 1384144 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 74743506 is about 8645.4326670214. The cubic root of 74743506 is about 421.2350381969.

It can be divided in two parts, 747 and 43506, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 74743506 in words is "seventy-four million, seven hundred forty-three thousand, five hundred six".