72650020 has 24 divisors (see below), whose sum is σ = 154050624. Its totient is φ = 28777056.

The previous prime is 72650003. The next prime is 72650041. The reversal of 72650020 is 2005627.

It is a junction number, because it is equal to n+sod(n) for n = 72649973 and 72650000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15574 + ... + 19693.

It is an arithmetic number, because the mean of its divisors is an integer number (6418776).

Almost surely, 2^72650020 is an apocalyptic number.

It is an amenable number.

72650020 is an abundant number, since it is smaller than the sum of its proper divisors (81400604).

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

72650020 is a wasteful number, since it uses less digits than its factorization.

72650020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35379 (or 35377 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 72650020 is about 8523.4981081713. The cubic root of 72650020 is about 417.2649566843.

Adding to 72650020 its reverse (2005627), we get a palindrome (74655647).

The spelling of 72650020 in words is "seventy-two million, six hundred fifty thousand, twenty".