72440510 has 16 divisors (see below), whose sum is σ = 130491216. Its totient is φ = 28954368.

The previous prime is 72440497. The next prime is 72440513. The reversal of 72440510 is 1504427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72440513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21137 + ... + 24323.

It is an arithmetic number, because the mean of its divisors is an integer number (8155701).

Almost surely, 2^72440510 is an apocalyptic number.

72440510 is a deficient number, since it is larger than the sum of its proper divisors (58050706).

72440510 is a wasteful number, since it uses less digits than its factorization.

72440510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 72440510 is about 8511.1990929598. The cubic root of 72440510 is about 416.8634640131.

Adding to 72440510 its reverse (1504427), we get a palindrome (73944937).

The spelling of 72440510 in words is "seventy-two million, four hundred forty thousand, five hundred ten".