40194980 has 24 divisors (see below), whose sum is σ = 96468288. Its totient is φ = 13781088.

The previous prime is 40194971. The next prime is 40194997. The reversal of 40194980 is 8949104.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 40194980.

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, 143414 + ... + 143693.

It is an arithmetic number, because the mean of its divisors is an integer number (4019512).

Almost surely, 2^40194980 is an apocalyptic number.

It is an amenable number.

40194980 is an abundant number, since it is smaller than the sum of its proper divisors (56273308).

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

40194980 is a wasteful number, since it uses less digits than its factorization.

40194980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287123 (or 287121 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 40194980 is about 6339.9511039124. The cubic root of 40194980 is about 342.5499740602.

The spelling of 40194980 in words is "forty million, one hundred ninety-four thousand, nine hundred eighty".