340799280 has 160 divisors (see below), whose sum is σ = 1114642944. Its totient is φ = 85966848.

The previous prime is 340799269. The next prime is 340799287. The reversal of 340799280 is 82997043.

It is a super-2 number, since 2×340799280² = 232288298497036800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (340799287) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 590352 + ... + 590928.

Almost surely, 2^340799280 is an apocalyptic number.

340799280 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 340799280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557321472).

340799280 is an abundant number, since it is smaller than the sum of its proper divisors (773843664).

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

340799280 is a wasteful number, since it uses less digits than its factorization.

340799280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 340799280 is about 18460.7497139201. The cubic root of 340799280 is about 698.4996982830.

The spelling of 340799280 in words is "three hundred forty million, seven hundred ninety-nine thousand, two hundred eighty".