40002340 has 24 divisors (see below), whose sum is σ = 96005952. Its totient is φ = 13715040.

The previous prime is 40002337. The next prime is 40002367. The reversal of 40002340 is 4320004.

40002340 is a modest number, since divided by 2340 gives 40 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 40002340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142726 + ... + 143005.

It is an arithmetic number, because the mean of its divisors is an integer number (4000248).

Almost surely, 2^40002340 is an apocalyptic number.

It is an amenable number.

40002340 is an abundant number, since it is smaller than the sum of its proper divisors (56003612).

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

40002340 is a wasteful number, since it uses less digits than its factorization.

40002340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285747 (or 285745 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40002340 is about 6324.7403108744. The cubic root of 40002340 is about 342.0018581115.

Adding to 40002340 its reverse (4320004), we get a palindrome (44322344).

The spelling of 40002340 in words is "forty million, two thousand, three hundred forty".