30190390 has 16 divisors (see below), whose sum is σ = 55369008. Its totient is φ = 11848096.

The previous prime is 30190379. The next prime is 30190397. The reversal of 30190390 is 9309103.

It is a super-2 number, since 2×30190390² = 1822919296704200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30190397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27952 + ... + 29011.

It is an arithmetic number, because the mean of its divisors is an integer number (3460563).

Almost surely, 2^30190390 is an apocalyptic number.

30190390 is a deficient number, since it is larger than the sum of its proper divisors (25178618).

30190390 is a wasteful number, since it uses less digits than its factorization.

30190390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57023.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 30190390 is about 5494.5782367712. The cubic root of 30190390 is about 311.3791827323.

Adding to 30190390 its reverse (9309103), we get a palindrome (39499493).

The spelling of 30190390 in words is "thirty million, one hundred ninety thousand, three hundred ninety".