30298040 has 32 divisors (see below), whose sum is σ = 70524000. Its totient is φ = 11700864.

The previous prime is 30298031. The next prime is 30298049. The reversal of 30298040 is 4089203.

It is an interprime number because it is at equal distance from previous prime (30298031) and next prime (30298049).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30298049) 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, 11900 + ... + 14219.

It is an arithmetic number, because the mean of its divisors is an integer number (2203875).

Almost surely, 2^30298040 is an apocalyptic number.

It is an amenable number.

30298040 is an abundant number, since it is smaller than the sum of its proper divisors (40225960).

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

30298040 is a wasteful number, since it uses less digits than its factorization.

30298040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26159 (or 26155 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30298040 is about 5504.3655401872. The cubic root of 30298040 is about 311.7488390699.

The spelling of 30298040 in words is "thirty million, two hundred ninety-eight thousand, forty".