72622130 has 32 divisors (see below), whose sum is σ = 158184576. Its totient is φ = 23433984.

The previous prime is 72622129. The next prime is 72622133. The reversal of 72622130 is 3122627.

72622130 = 882² + 883² + ... + 966².

It is a junction number, because it is equal to n+sod(n) for n = 72622096 and 72622105.

It is not an unprimeable number, because it can be changed into a prime (72622133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29324 + ... + 31703.

It is an arithmetic number, because the mean of its divisors is an integer number (4943268).

Almost surely, 2^72622130 is an apocalyptic number.

72622130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72622130 is an abundant number, since it is smaller than the sum of its proper divisors (85562446).

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

72622130 is a wasteful number, since it uses less digits than its factorization.

72622130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61058.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 72622130 is about 8521.8618857618. The cubic root of 72622130 is about 417.2115545006.

Adding to 72622130 its reverse (3122627), we get a palindrome (75744757).

The spelling of 72622130 in words is "seventy-two million, six hundred twenty-two thousand, one hundred thirty".