72366390 has 48 divisors (see below), whose sum is σ = 188574048. Its totient is φ = 19254528.

The previous prime is 72366389. The next prime is 72366401. The reversal of 72366390 is 9366327.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 73582 + ... + 74558.

It is an arithmetic number, because the mean of its divisors is an integer number (3928626).

Almost surely, 2^72366390 is an apocalyptic number.

72366390 is an abundant number, since it is smaller than the sum of its proper divisors (116207658).

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

72366390 is a wasteful number, since it uses less digits than its factorization.

72366390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 72366390 is about 8506.8437155034. The cubic root of 72366390 is about 416.7212394298.

The spelling of 72366390 in words is "seventy-two million, three hundred sixty-six thousand, three hundred ninety".