40363820 has 24 divisors (see below), whose sum is σ = 96873504. Its totient is φ = 13838976.

The previous prime is 40363811. The next prime is 40363849. The reversal of 40363820 is 2836304.

It is a self number, because there is not a number n which added to its sum of digits gives 40363820.

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, 144017 + ... + 144296.

It is an arithmetic number, because the mean of its divisors is an integer number (4036396).

Almost surely, 2^40363820 is an apocalyptic number.

It is an amenable number.

40363820 is an abundant number, since it is smaller than the sum of its proper divisors (56509684).

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

40363820 is a wasteful number, since it uses less digits than its factorization.

40363820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288329 (or 288327 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40363820 is about 6353.2527102265. The cubic root of 40363820 is about 343.0289339151.

The spelling of 40363820 in words is "forty million, three hundred sixty-three thousand, eight hundred twenty".