74257506 has 32 divisors (see below), whose sum is σ = 166881600. Its totient is φ = 24472800.

The previous prime is 74257499. The next prime is 74257537. The reversal of 74257506 is 60575247.

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, 2920 + ... + 12531.

It is an arithmetic number, because the mean of its divisors is an integer number (5215050).

Almost surely, 2^74257506 is an apocalyptic number.

74257506 is an abundant number, since it is smaller than the sum of its proper divisors (92624094).

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

74257506 is a wasteful number, since it uses less digits than its factorization.

74257506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15551 (or 15545 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 74257506 is about 8617.2795010955. The cubic root of 74257506 is about 420.3200621562.

The spelling of 74257506 in words is "seventy-four million, two hundred fifty-seven thousand, five hundred six".