72040630 has 16 divisors (see below), whose sum is σ = 129942000. Its totient is φ = 28756512.

The previous prime is 72040603. The next prime is 72040637. The reversal of 72040630 is 3604027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72040637) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2229 + ... + 12208.

It is an arithmetic number, because the mean of its divisors is an integer number (8121375).

Almost surely, 2^72040630 is an apocalyptic number.

72040630 is a deficient number, since it is larger than the sum of its proper divisors (57901370).

72040630 is a wasteful number, since it uses less digits than its factorization.

72040630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14943.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 72040630 is about 8487.6751822864. The cubic root of 72040630 is about 416.0950034192.

Adding to 72040630 its reverse (3604027), we get a palindrome (75644657).

The spelling of 72040630 in words is "seventy-two million, forty thousand, six hundred thirty".