74972286 has 24 divisors (see below), whose sum is σ = 166831704. Its totient is φ = 24315120.

The previous prime is 74972281. The next prime is 74972311. The reversal of 74972286 is 68227947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74972281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55620 + ... + 56951.

It is an arithmetic number, because the mean of its divisors is an integer number (6951321).

Almost surely, 2^74972286 is an apocalyptic number.

74972286 is an abundant number, since it is smaller than the sum of its proper divisors (91859418).

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

74972286 is a wasteful number, since it uses less digits than its factorization.

74972286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112616 (or 112613 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 74972286 is about 8658.6538214667. The cubic root of 74972286 is about 421.6643820450.

The spelling of 74972286 in words is "seventy-four million, nine hundred seventy-two thousand, two hundred eighty-six".