72918486 has 24 divisors (see below), whose sum is σ = 158162160. Its totient is φ = 24279696.

The previous prime is 72918481. The next prime is 72918553. The reversal of 72918486 is 68481927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72918481) 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 11 ways as a sum of consecutive naturals, for example, 21900 + ... + 25008.

It is an arithmetic number, because the mean of its divisors is an integer number (6590090).

Almost surely, 2^72918486 is an apocalyptic number.

72918486 is an abundant number, since it is smaller than the sum of its proper divisors (85243674).

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

72918486 is a wasteful number, since it uses less digits than its factorization.

72918486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420 (or 4417 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 72918486 is about 8539.2321668871. The cubic root of 72918486 is about 417.7783024982.

The spelling of 72918486 in words is "seventy-two million, nine hundred eighteen thousand, four hundred eighty-six".