340803840 has 144 divisors (see below), whose sum is σ = 1172340288. Its totient is φ = 83877888.

The previous prime is 340803821. The next prime is 340803851. The reversal of 340803840 is 48308043.

It is a super-2 number, since 2×340803840² = 232294514717491200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 340803798 and 340803807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46507 + ... + 53333.

It is an arithmetic number, because the mean of its divisors is an integer number (8141252).

Almost surely, 2^340803840 is an apocalyptic number.

340803840 is a gapful number since it is divisible by the number (30) 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 340803840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586170144).

340803840 is an abundant number, since it is smaller than the sum of its proper divisors (831536448).

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

340803840 is a wasteful number, since it uses less digits than its factorization.

340803840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6864 (or 6850 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 340803840 is about 18460.8732187836. The cubic root of 340803840 is about 698.5028136499.

The spelling of 340803840 in words is "three hundred forty million, eight hundred three thousand, eight hundred forty".