340990720 has 144 divisors (see below), whose sum is σ = 983082240. Its totient is φ = 110702592.

The previous prime is 340990717. The next prime is 340990757. The reversal of 340990720 is 27099043.

It is a super-2 number, since 2×340990720² = 232549342252236800, which contains 22 as substring.

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, 169239 + ... + 171241.

It is an arithmetic number, because the mean of its divisors is an integer number (6826960).

Almost surely, 2^340990720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340990720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491541120).

340990720 is an abundant number, since it is smaller than the sum of its proper divisors (642091520).

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

340990720 is a wasteful number, since it uses less digits than its factorization.

340990720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050 (or 2036 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 340990720 is about 18465.9340408223. The cubic root of 340990720 is about 698.6304651392.

The spelling of 340990720 in words is "three hundred forty million, nine hundred ninety thousand, seven hundred twenty".