340408020 has 48 divisors (see below), whose sum is σ = 954995328. Its totient is φ = 90599040.

The previous prime is 340407997. The next prime is 340408037. The reversal of 340408020 is 20804043.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27217 + ... + 37703.

It is an arithmetic number, because the mean of its divisors is an integer number (19895736).

Almost surely, 2^340408020 is an apocalyptic number.

340408020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340408020 is an abundant number, since it is smaller than the sum of its proper divisors (614587308).

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

340408020 is a wasteful number, since it uses less digits than its factorization.

340408020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040 (or 11038 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 340408020 is about 18450.1495928895. The cubic root of 340408020 is about 698.2322880491.

The spelling of 340408020 in words is "three hundred forty million, four hundred eight thousand, twenty".