40797380 has 24 divisors (see below), whose sum is σ = 92265432. Its totient is φ = 15063552.

The previous prime is 40797371. The next prime is 40797397. The reversal of 40797380 is 8379704.

It can be written as a sum of positive squares in 4 ways, for example, as 5466244 + 35331136 = 2338^2 + 5944^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78197 + ... + 78716.

It is an arithmetic number, because the mean of its divisors is an integer number (3844393).

Almost surely, 2^40797380 is an apocalyptic number.

It is an amenable number.

40797380 is an abundant number, since it is smaller than the sum of its proper divisors (51468052).

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

40797380 is a wasteful number, since it uses less digits than its factorization.

40797380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156935 (or 156933 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 40797380 is about 6387.2826773206. The cubic root of 40797380 is about 344.2527550208.

The spelling of 40797380 in words is "forty million, seven hundred ninety-seven thousand, three hundred eighty".