72859450 has 24 divisors (see below), whose sum is σ = 143491932. Its totient is φ = 27429120.

The previous prime is 72859441. The next prime is 72859453. The reversal of 72859450 is 5495827.

It can be written as a sum of positive squares in 6 ways, for example, as 25290841 + 47568609 = 5029^2 + 6897^2 .

It is not an unprimeable number, because it can be changed into a prime (72859453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42009 + ... + 43708.

Almost surely, 2^72859450 is an apocalyptic number.

72859450 is a deficient number, since it is larger than the sum of its proper divisors (70632482).

72859450 is a wasteful number, since it uses less digits than its factorization.

72859450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85746 (or 85741 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 72859450 is about 8535.7747158650. The cubic root of 72859450 is about 417.6655253396.

The spelling of 72859450 in words is "seventy-two million, eight hundred fifty-nine thousand, four hundred fifty".