40357980 has 96 divisors (see below), whose sum is σ = 135240000. Its totient is φ = 9932544.

The previous prime is 40357979. The next prime is 40358023. The reversal of 40357980 is 8975304.

40357980 is a `hidden beast` number, since 4 + 0 + 3 + 579 + 80 = 666.

40357980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4146 + ... + 9894.

It is an arithmetic number, because the mean of its divisors is an integer number (1408750).

Almost surely, 2^40357980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40357980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67620000).

40357980 is an abundant number, since it is smaller than the sum of its proper divisors (94882020).

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

40357980 is a wasteful number, since it uses less digits than its factorization.

40357980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780 (or 5772 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 40357980 is about 6352.7930865093. The cubic root of 40357980 is about 343.0123895147.

The spelling of 40357980 in words is "forty million, three hundred fifty-seven thousand, nine hundred eighty".