30949000 has 32 divisors (see below), whose sum is σ = 72423000. Its totient is φ = 12379200.

The previous prime is 30948997. The next prime is 30949019. The reversal of 30949000 is 94903.

It can be written as a sum of positive squares in 4 ways, for example, as 17859076 + 13089924 = 4226^2 + 3618^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14475 + ... + 16474.

Almost surely, 2^30949000 is an apocalyptic number.

It is an amenable number.

30949000 is an abundant number, since it is smaller than the sum of its proper divisors (41474000).

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

30949000 is a wasteful number, since it uses less digits than its factorization.

30949000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30970 (or 30956 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 30949000 is about 5563.1825423942. The cubic root of 30949000 is about 313.9657014209.

The spelling of 30949000 in words is "thirty million, nine hundred forty-nine thousand".