340800194920 has 16 divisors (see below), whose sum is σ = 766800438660. Its totient is φ = 136320077952.

The previous prime is 340800194899. The next prime is 340800194941. The reversal of 340800194920 is 29491008043.

It is an interprime number because it is at equal distance from previous prime (340800194899) and next prime (340800194941).

It can be written as a sum of positive squares in 2 ways, for example, as 296242895524 + 44557299396 = 544282^2 + 211086^2 .

It is a super-2 number, since 2×340800194920² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 8520004873 = 340800194920 / (3 + 4 + 0 + 8 + 0 + 0 + 1 + 9 + 4 + 9 + 2 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260002397 + ... + 4260002476.

Almost surely, 2^340800194920 is an apocalyptic number.

It is an amenable number.

340800194920 is an abundant number, since it is smaller than the sum of its proper divisors (426000243740).

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

340800194920 is a wasteful number, since it uses less digits than its factorization.

340800194920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520004884 (or 8520004880 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 340800194920 in words is "three hundred forty billion, eight hundred million, one hundred ninety-four thousand, nine hundred twenty".