30440259 has 32 divisors (see below), whose sum is σ = 46717440. Its totient is φ = 19577376.

The previous prime is 30440257. The next prime is 30440269. The reversal of 30440259 is 95204403.

It is not a de Polignac number, because 30440259 - 2¹ = 30440257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30440257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182194 + ... + 182360.

It is an arithmetic number, because the mean of its divisors is an integer number (1459920).

Almost surely, 2^30440259 is an apocalyptic number.

30440259 is a deficient number, since it is larger than the sum of its proper divisors (16277181).

30440259 is a wasteful number, since it uses less digits than its factorization.

30440259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30440259 is about 5517.2691614602. The cubic root of 30440259 is about 312.2358608539.

The spelling of 30440259 in words is "thirty million, four hundred forty thousand, two hundred fifty-nine".