30190780 has 24 divisors (see below), whose sum is σ = 63523152. Its totient is φ = 12052992.

The previous prime is 30190777. The next prime is 30190837. The reversal of 30190780 is 8709103.

It is a super-2 number, since 2×30190780² = 1822966394016800, 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 7 ways as a sum of consecutive naturals, for example, 12339 + ... + 14581.

It is an arithmetic number, because the mean of its divisors is an integer number (2646798).

Almost surely, 2^30190780 is an apocalyptic number.

It is an amenable number.

30190780 is an abundant number, since it is smaller than the sum of its proper divisors (33332372).

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

30190780 is a wasteful number, since it uses less digits than its factorization.

30190780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 30190780 is about 5494.6137261868. The cubic root of 30190780 is about 311.3805235272.

Adding to 30190780 its reverse (8709103), we get a palindrome (38899883).

The spelling of 30190780 in words is "thirty million, one hundred ninety thousand, seven hundred eighty".