72404401370 has 64 divisors (see below), whose sum is σ = 149456240640. Its totient is φ = 24739532352.

The previous prime is 72404401357. The next prime is 72404401439. The reversal of 72404401370 is 7310440427.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32336711 + ... + 32338949.

It is an arithmetic number, because the mean of its divisors is an integer number (2335253760).

Almost surely, 2^72404401370 is an apocalyptic number.

72404401370 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72404401370 is an abundant number, since it is smaller than the sum of its proper divisors (77051839270).

72404401370 is a wasteful number, since it uses less digits than its factorization.

72404401370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627.

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 72404401370 its reverse (7310440427), we get a palindrome (79714841797).

The spelling of 72404401370 in words is "seventy-two billion, four hundred four million, four hundred one thousand, three hundred seventy".