30690032 has 20 divisors (see below), whose sum is σ = 62960256. Its totient is φ = 14442240.

The previous prime is 30690029. The next prime is 30690041. The reversal of 30690032 is 23009603.

It is a happy number.

It is a super-2 number, since 2×30690032² = 1883756128322048, 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 3 ways as a sum of consecutive naturals, for example, 56144 + ... + 56687.

Almost surely, 2^30690032 is an apocalyptic number.

It is an amenable number.

30690032 is an abundant number, since it is smaller than the sum of its proper divisors (32270224).

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

30690032 is a wasteful number, since it uses less digits than its factorization.

30690032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112856 (or 112850 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30690032 is about 5539.8584819470. The cubic root of 30690032 is about 313.0875372277.

Adding to 30690032 its reverse (23009603), we get a palindrome (53699635).

The spelling of 30690032 in words is "thirty million, six hundred ninety thousand, thirty-two".