39173130 has 24 divisors (see below), whose sum is σ = 101850372. Its totient is φ = 10446144.

The previous prime is 39173093. The next prime is 39173131. The reversal of 39173130 is 3137193.

It can be written as a sum of positive squares in 2 ways, for example, as 31505769 + 7667361 = 5613^2 + 2769^2 .

It is a super-2 number, since 2×39173130² = 3069068227993800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39173094 and 39173103.

It is not an unprimeable number, because it can be changed into a prime (39173131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217539 + ... + 217718.

Almost surely, 2^39173130 is an apocalyptic number.

39173130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39173130 is an abundant number, since it is smaller than the sum of its proper divisors (62677242).

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

39173130 is a wasteful number, since it uses less digits than its factorization.

39173130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435270 (or 435267 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 39173130 is about 6258.8441424915. The cubic root of 39173130 is about 339.6222159132.

The spelling of 39173130 in words is "thirty-nine million, one hundred seventy-three thousand, one hundred thirty".