30864398 has 8 divisors (see below), whose sum is σ = 48733320. Its totient is φ = 14619960.

The previous prime is 30864389. The next prime is 30864419. The reversal of 30864398 is 89346803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30864398² = 1905222127804808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406073 + ... + 406148.

It is an arithmetic number, because the mean of its divisors is an integer number (6091665).

Almost surely, 2^30864398 is an apocalyptic number.

30864398 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30864398 is a deficient number, since it is larger than the sum of its proper divisors (17868922).

30864398 is a wasteful number, since it uses less digits than its factorization.

30864398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812242.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 30864398 is about 5555.5735977485. The cubic root of 30864398 is about 313.6793554275.

The spelling of 30864398 in words is "thirty million, eight hundred sixty-four thousand, three hundred ninety-eight".