30182940 has 36 divisors (see below), whose sum is σ = 91555464. Its totient is φ = 8048736.

The previous prime is 30182921. The next prime is 30182951. The reversal of 30182940 is 4928103.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×30182940² = 1822019734087200, 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 11 ways as a sum of consecutive naturals, for example, 83662 + ... + 84021.

Almost surely, 2^30182940 is an apocalyptic number.

30182940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30182940 is an abundant number, since it is smaller than the sum of its proper divisors (61372524).

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

30182940 is a wasteful number, since it uses less digits than its factorization.

30182940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167698 (or 167693 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30182940 is about 5493.9002539180. The cubic root of 30182940 is about 311.3535678954.

The spelling of 30182940 in words is "thirty million, one hundred eighty-two thousand, nine hundred forty".