304747380 has 96 divisors (see below), whose sum is σ = 1083559680. Its totient is φ = 69655680.

The previous prime is 304747363. The next prime is 304747381. The reversal of 304747380 is 83747403.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304747381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36531 + ... + 44090.

It is an arithmetic number, because the mean of its divisors is an integer number (11287080).

Almost surely, 2^304747380 is an apocalyptic number.

304747380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304747380 is an abundant number, since it is smaller than the sum of its proper divisors (778812300).

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

304747380 is a wasteful number, since it uses less digits than its factorization.

304747380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80646 (or 80638 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 304747380 is about 17457.0152087921. The cubic root of 304747380 is about 672.9456552332.

The spelling of 304747380 in words is "three hundred four million, seven hundred forty-seven thousand, three hundred eighty".