30230840 has 16 divisors (see below), whose sum is σ = 68019480. Its totient is φ = 12092320.

The previous prime is 30230839. The next prime is 30230873. The reversal of 30230840 is 4803203.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 377846 + ... + 377925.

Almost surely, 2^30230840 is an apocalyptic number.

It is an amenable number.

30230840 is an abundant number, since it is smaller than the sum of its proper divisors (37788640).

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

30230840 is a wasteful number, since it uses less digits than its factorization.

30230840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755782 (or 755778 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30230840 is about 5498.2579059189. The cubic root of 30230840 is about 311.5181857610.

The spelling of 30230840 in words is "thirty million, two hundred thirty thousand, eight hundred forty".