30290238 has 24 divisors (see below), whose sum is σ = 71595576. Its totient is φ = 9178800.

The previous prime is 30290219. The next prime is 30290251. The reversal of 30290238 is 83209203.

It is a super-3 number, since 3×30290238³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76293 + ... + 76688.

It is an arithmetic number, because the mean of its divisors is an integer number (2983149).

Almost surely, 2^30290238 is an apocalyptic number.

30290238 is an abundant number, since it is smaller than the sum of its proper divisors (41305338).

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

30290238 is a wasteful number, since it uses less digits than its factorization.

30290238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153000 (or 152997 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30290238 is about 5503.6567843571. The cubic root of 30290238 is about 311.7220774571.

The spelling of 30290238 in words is "thirty million, two hundred ninety thousand, two hundred thirty-eight".