343979540 has 48 divisors (see below), whose sum is σ = 740275200. Its totient is φ = 134209920.

The previous prime is 343979501. The next prime is 343979551. The reversal of 343979540 is 45979343.

It is a super-2 number, since 2×343979540² = 236643847877223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343979491 and 343979500.

It is a congruent number.

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, 201611 + ... + 203309.

It is an arithmetic number, because the mean of its divisors is an integer number (15422400).

Almost surely, 2^343979540 is an apocalyptic number.

It is an amenable number.

343979540 is an abundant number, since it is smaller than the sum of its proper divisors (396295660).

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

343979540 is a wasteful number, since it uses less digits than its factorization.

343979540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 343979540 is about 18546.6854181549. The cubic root of 343979540 is about 700.6657204212.

The spelling of 343979540 in words is "three hundred forty-three million, nine hundred seventy-nine thousand, five hundred forty".