40684180 has 12 divisors (see below), whose sum is σ = 85436820. Its totient is φ = 16273664.

The previous prime is 40684169. The next prime is 40684211. The reversal of 40684180 is 8148604.

It can be written as a sum of positive squares in 2 ways, for example, as 16418704 + 24265476 = 4052^2 + 4926^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017085 + ... + 1017124.

It is an arithmetic number, because the mean of its divisors is an integer number (7119735).

Almost surely, 2^40684180 is an apocalyptic number.

It is an amenable number.

40684180 is an abundant number, since it is smaller than the sum of its proper divisors (44752640).

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

40684180 is a wasteful number, since it uses less digits than its factorization.

40684180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034218 (or 2034216 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 40684180 is about 6378.4151636594. The cubic root of 40684180 is about 343.9340620869.

The spelling of 40684180 in words is "forty million, six hundred eighty-four thousand, one hundred eighty".