340842816 has 140 divisors (see below), whose sum is σ = 1038255988. Its totient is φ = 110481408.

The previous prime is 340842797. The next prime is 340842833. The reversal of 340842816 is 618248043.

It can be written as a sum of positive squares in 2 ways, for example, as 246364416 + 94478400 = 15696^2 + 9720^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 190920 + ... + 192696.

Almost surely, 2^340842816 is an apocalyptic number.

340842816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340842816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519127994).

340842816 is an abundant number, since it is smaller than the sum of its proper divisors (697413172).

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

340842816 is a wasteful number, since it uses less digits than its factorization.

340842816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 340842816 is about 18461.9288266421. The cubic root of 340842816 is about 698.5294407050.

The spelling of 340842816 in words is "three hundred forty million, eight hundred forty-two thousand, eight hundred sixteen".