30958996 has 12 divisors (see below), whose sum is σ = 55200852. Its totient is φ = 15187328.

The previous prime is 30958981. The next prime is 30958997. The reversal of 30958996 is 69985903.

It can be written as a sum of positive squares in 2 ways, for example, as 22467600 + 8491396 = 4740^2 + 2914^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30958997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72805 + ... + 73228.

It is an arithmetic number, because the mean of its divisors is an integer number (4600071).

Almost surely, 2^30958996 is an apocalyptic number.

It is an amenable number.

30958996 is a deficient number, since it is larger than the sum of its proper divisors (24241856).

30958996 is a wasteful number, since it uses less digits than its factorization.

30958996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146090 (or 146088 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 30958996 is about 5564.0808764791. The cubic root of 30958996 is about 313.9994996408. Note that the first 3 decimals are identical.

The spelling of 30958996 in words is "thirty million, nine hundred fifty-eight thousand, nine hundred ninety-six".