30492198 has 24 divisors (see below), whose sum is σ = 72072936. Its totient is φ = 9240000.

The previous prime is 30492197. The next prime is 30492199. The reversal of 30492198 is 89129403.

It is an interprime number because it is at equal distance from previous prime (30492197) and next prime (30492199).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30492197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76803 + ... + 77198.

It is an arithmetic number, because the mean of its divisors is an integer number (3003039).

Almost surely, 2^30492198 is an apocalyptic number.

30492198 is an abundant number, since it is smaller than the sum of its proper divisors (41580738).

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

30492198 is a wasteful number, since it uses less digits than its factorization.

30492198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154020 (or 154017 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 30492198 is about 5521.9741035249. The cubic root of 30492198 is about 312.4133451466.

The spelling of 30492198 in words is "thirty million, four hundred ninety-two thousand, one hundred ninety-eight".