340020880 has 20 divisors (see below), whose sum is σ = 790548732. Its totient is φ = 136008320.

The previous prime is 340020869. The next prime is 340020883. The reversal of 340020880 is 88020043.

It can be written as a sum of positive squares in 2 ways, for example, as 78357904 + 261662976 = 8852^2 + 16176^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×340020880² = 231228397671948800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340020883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125051 + ... + 2125210.

Almost surely, 2^340020880 is an apocalyptic number.

It is an amenable number.

340020880 is an abundant number, since it is smaller than the sum of its proper divisors (450527852).

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

340020880 is a wasteful number, since it uses less digits than its factorization.

340020880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250274 (or 4250268 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 340020880 is about 18439.6550943883. The cubic root of 340020880 is about 697.9674919111.

The spelling of 340020880 in words is "three hundred forty million, twenty thousand, eight hundred eighty".