30990106 has 16 divisors (see below), whose sum is σ = 53855424. Its totient is φ = 13099104.

The previous prime is 30990101. The next prime is 30990109. The reversal of 30990106 is 60109903.

It is a happy number.

It is a super-3 number, since 3×30990106³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30990101) 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, 14140 + ... + 16183.

It is an arithmetic number, because the mean of its divisors is an integer number (3365964).

Almost surely, 2^30990106 is an apocalyptic number.

30990106 is a deficient number, since it is larger than the sum of its proper divisors (22865318).

30990106 is a wasteful number, since it uses less digits than its factorization.

30990106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30405.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 30990106 is about 5566.8757844953. The cubic root of 30990106 is about 314.1046414463.

The spelling of 30990106 in words is "thirty million, nine hundred ninety thousand, one hundred six".