30249090 has 24 divisors (see below), whose sum is σ = 78647868. Its totient is φ = 8066400.

The previous prime is 30249077. The next prime is 30249113. The reversal of 30249090 is 9094203.

It can be written as a sum of positive squares in 2 ways, for example, as 29127609 + 1121481 = 5397^2 + 1059^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167961 + ... + 168140.

Almost surely, 2^30249090 is an apocalyptic number.

30249090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30249090 is an abundant number, since it is smaller than the sum of its proper divisors (48398778).

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

30249090 is a wasteful number, since it uses less digits than its factorization.

30249090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336114 (or 336111 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 30249090 is about 5499.9172721051. The cubic root of 30249090 is about 311.5808597637.

The spelling of 30249090 in words is "thirty million, two hundred forty-nine thousand, ninety".