30449000 has 32 divisors (see below), whose sum is σ = 71253000. Its totient is φ = 12179200.

The previous prime is 30448991. The next prime is 30449009. The reversal of 30449000 is 94403.

It is an interprime number because it is at equal distance from previous prime (30448991) and next prime (30449009).

It can be written as a sum of positive squares in 4 ways, for example, as 3678724 + 26770276 = 1918^2 + 5174^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (30449009) 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, 14225 + ... + 16224.

Almost surely, 2^30449000 is an apocalyptic number.

It is an amenable number.

30449000 is an abundant number, since it is smaller than the sum of its proper divisors (40804000).

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

30449000 is a wasteful number, since it uses less digits than its factorization.

30449000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30470 (or 30456 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30449000 is about 5518.0612537376. The cubic root of 30449000 is about 312.2657444417.

The spelling of 30449000 in words is "thirty million, four hundred forty-nine thousand".