72013370 has 32 divisors (see below), whose sum is σ = 152288640. Its totient is φ = 24171840.

The previous prime is 72013369. The next prime is 72013387. The reversal of 72013370 is 7331027.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23750 + ... + 26609.

It is an arithmetic number, because the mean of its divisors is an integer number (4759020).

Almost surely, 2^72013370 is an apocalyptic number.

72013370 is an abundant number, since it is smaller than the sum of its proper divisors (80275270).

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

72013370 is a wasteful number, since it uses less digits than its factorization.

72013370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50390.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 72013370 is about 8486.0691724732. The cubic root of 72013370 is about 416.0425136840.

Adding to 72013370 its reverse (7331027), we get a palindrome (79344397).

The spelling of 72013370 in words is "seventy-two million, thirteen thousand, three hundred seventy".