30230040 has 32 divisors (see below), whose sum is σ = 90690480. Its totient is φ = 8061312.

The previous prime is 30230033. The next prime is 30230051. The reversal of 30230040 is 4003203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30229998 and 30230025.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 125839 + ... + 126078.

Almost surely, 2^30230040 is an apocalyptic number.

30230040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30230040 is an abundant number, since it is smaller than the sum of its proper divisors (60460440).

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

30230040 is a wasteful number, since it uses less digits than its factorization.

30230040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251931 (or 251927 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30230040 is about 5498.1851551216. The cubic root of 30230040 is about 311.5154378305.

Adding to 30230040 its reverse (4003203), we get a palindrome (34233243).

The spelling of 30230040 in words is "thirty million, two hundred thirty thousand, forty".