30313390 has 16 divisors (see below), whose sum is σ = 54641808. Its totient is φ = 12108096.

The previous prime is 30313369. The next prime is 30313399. The reversal of 30313390 is 9331303.

It is a super-2 number, since 2×30313390² = 1837803226584200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313399) 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, 7114 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (3415113).

Almost surely, 2^30313390 is an apocalyptic number.

30313390 is a deficient number, since it is larger than the sum of its proper divisors (24328418).

30313390 is a wasteful number, since it uses less digits than its factorization.

30313390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323.

The product of its (nonzero) digits is 729, while the sum is 22.

The square root of 30313390 is about 5505.7597114295. The cubic root of 30313390 is about 311.8014776429.

Adding to 30313390 its reverse (9331303), we get a palindrome (39644693).

It can be divided in two parts, 30313 and 390, that added together give a palindrome (30703).

The spelling of 30313390 in words is "thirty million, three hundred thirteen thousand, three hundred ninety".