304100040 has 64 divisors (see below), whose sum is σ = 936970560. Its totient is φ = 78900480.

The previous prime is 304100039. The next prime is 304100087. The reversal of 304100040 is 40001403.

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 = 304099989 and 304100025.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29806 + ... + 38685.

It is an arithmetic number, because the mean of its divisors is an integer number (14640165).

Almost surely, 2^304100040 is an apocalyptic number.

304100040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304100040 is an abundant number, since it is smaller than the sum of its proper divisors (632870520).

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

304100040 is a wasteful number, since it uses less digits than its factorization.

304100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68542 (or 68538 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 304100040 is about 17438.4643819346. The cubic root of 304100040 is about 672.4688302925.

Adding to 304100040 its reverse (40001403), we get a palindrome (344101443).

The spelling of 304100040 in words is "three hundred four million, one hundred thousand, forty".