30440992 has 12 divisors (see below), whose sum is σ = 59930766. Its totient is φ = 15220480.

The previous prime is 30440987. The next prime is 30441001. The reversal of 30440992 is 29904403.

It can be written as a sum of positive squares in only one way, i.e., 25040016 + 5400976 = 5004^2 + 2324^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475609 + ... + 475672.

Almost surely, 2^30440992 is an apocalyptic number.

30440992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30440992 is a deficient number, since it is larger than the sum of its proper divisors (29489774).

30440992 is an equidigital number, since it uses as much as digits as its factorization.

30440992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951291 (or 951283 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30440992 is about 5517.3355888508. The cubic root of 30440992 is about 312.2383670420.

The spelling of 30440992 in words is "thirty million, four hundred forty thousand, nine hundred ninety-two".