30174989 has 4 divisors (see below), whose sum is σ = 32496156. Its totient is φ = 27853824.

The previous prime is 30174979. The next prime is 30175001. The reversal of 30174989 is 98947103.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16728100 + 13446889 = 4090^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 30174989 - 2⁴ = 30174973 is a prime.

It is a super-2 number, since 2×30174989² = 1821059922300242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30174979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160564 + ... + 1160589.

It is an arithmetic number, because the mean of its divisors is an integer number (8124039).

Almost surely, 2^30174989 is an apocalyptic number.

It is an amenable number.

30174989 is a deficient number, since it is larger than the sum of its proper divisors (2321167).

30174989 is a wasteful number, since it uses less digits than its factorization.

30174989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321166.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 30174989 is about 5493.1765855468. The cubic root of 30174989 is about 311.3262258535.

The spelling of 30174989 in words is "thirty million, one hundred seventy-four thousand, nine hundred eighty-nine".