307412280 has 384 divisors, whose sum is σ = 1232020800. Its totient is φ = 67931136.

The previous prime is 307412257. The next prime is 307412311. The reversal of 307412280 is 82214703.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1957962 + ... + 1958118.

Almost surely, 2^307412280 is an apocalyptic number.

307412280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307412280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616010400).

307412280 is an abundant number, since it is smaller than the sum of its proper divisors (924608520).

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

307412280 is a wasteful number, since it uses less digits than its factorization.

307412280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 307412280 is about 17533.1765518973. The cubic root of 307412280 is about 674.9015164960.

Adding to 307412280 its reverse (82214703), we get a palindrome (389626983).

The spelling of 307412280 in words is "three hundred seven million, four hundred twelve thousand, two hundred eighty".