340090820 has 24 divisors (see below), whose sum is σ = 714537600. Its totient is φ = 135970272.

The previous prime is 340090819. The next prime is 340090901. The reversal of 340090820 is 28090043.

It is a self number, because there is not a number n which added to its sum of digits gives 340090820.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76211 + ... + 80549.

It is an arithmetic number, because the mean of its divisors is an integer number (29772400).

Almost surely, 2^340090820 is an apocalyptic number.

It is an amenable number.

340090820 is an abundant number, since it is smaller than the sum of its proper divisors (374446780).

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

340090820 is a wasteful number, since it uses less digits than its factorization.

340090820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8267 (or 8265 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 340090820 is about 18441.5514531723. The cubic root of 340090820 is about 698.0153443643.

The spelling of 340090820 in words is "three hundred forty million, ninety thousand, eight hundred twenty".