40199340 has 24 divisors (see below), whose sum is σ = 112558320. Its totient is φ = 10719808.

The previous prime is 40199323. The next prime is 40199359. The reversal of 40199340 is 4399104.

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 = 40199298 and 40199307.

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, 334935 + ... + 335054.

It is an arithmetic number, because the mean of its divisors is an integer number (4689930).

Almost surely, 2^40199340 is an apocalyptic number.

It is an amenable number.

40199340 is an abundant number, since it is smaller than the sum of its proper divisors (72358980).

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

40199340 is a wasteful number, since it uses less digits than its factorization.

40199340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670001 (or 669999 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 40199340 is about 6340.2949458207. The cubic root of 40199340 is about 342.5623592211.

The spelling of 40199340 in words is "forty million, one hundred ninety-nine thousand, three hundred forty".