40568340 has 48 divisors (see below), whose sum is σ = 113879808. Its totient is φ = 10790784.

The previous prime is 40568309. The next prime is 40568351. The reversal of 40568340 is 4386504.

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 = 40568298 and 40568307.

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, 36229 + ... + 37331.

It is an arithmetic number, because the mean of its divisors is an integer number (2372496).

Almost surely, 2^40568340 is an apocalyptic number.

It is an amenable number.

40568340 is an abundant number, since it is smaller than the sum of its proper divisors (73311468).

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

40568340 is a wasteful number, since it uses less digits than its factorization.

40568340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728 (or 1726 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 40568340 is about 6369.3280650317. The cubic root of 40568340 is about 343.6073241505.

The spelling of 40568340 in words is "forty million, five hundred sixty-eight thousand, three hundred forty".