30797190 has 24 divisors (see below), whose sum is σ = 80072928. Its totient is φ = 8212560.

The previous prime is 30797177. The next prime is 30797197. The reversal of 30797190 is 9179703.

It is a super-2 number, since 2×30797190² = 1896933823792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30797197) 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, 171006 + ... + 171185.

It is an arithmetic number, because the mean of its divisors is an integer number (3336372).

Almost surely, 2^30797190 is an apocalyptic number.

30797190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30797190 is an abundant number, since it is smaller than the sum of its proper divisors (49275738).

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

30797190 is a wasteful number, since it uses less digits than its factorization.

30797190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342204 (or 342201 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 30797190 is about 5549.5216010031. The cubic root of 30797190 is about 313.4515084144.

The spelling of 30797190 in words is "thirty million, seven hundred ninety-seven thousand, one hundred ninety".