40904980 has 48 divisors (see below), whose sum is σ = 89018496. Its totient is φ = 15776640.

The previous prime is 40904977. The next prime is 40904989. The reversal of 40904980 is 8940904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40904989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123415 + ... + 123745.

It is an arithmetic number, because the mean of its divisors is an integer number (1854552).

Almost surely, 2^40904980 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 40904980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44509248).

40904980 is an abundant number, since it is smaller than the sum of its proper divisors (48113516).

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

40904980 is a wasteful number, since it uses less digits than its factorization.

40904980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 40904980 is about 6395.7001180481. The cubic root of 40904980 is about 344.5551361972. Note that the first 3 decimals are identical.

The spelling of 40904980 in words is "forty million, nine hundred four thousand, nine hundred eighty".