40184380 has 12 divisors (see below), whose sum is σ = 84387240. Its totient is φ = 16073744.

The previous prime is 40184363. The next prime is 40184399. The reversal of 40184380 is 8348104.

It is a super-2 number, since 2×40184380² = 3229568791968800, which contains 22 as substring.

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, 1004590 + ... + 1004629.

It is an arithmetic number, because the mean of its divisors is an integer number (7032270).

Almost surely, 2^40184380 is an apocalyptic number.

It is an amenable number.

40184380 is an abundant number, since it is smaller than the sum of its proper divisors (44202860).

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

40184380 is a wasteful number, since it uses less digits than its factorization.

40184380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009228 (or 2009226 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40184380 is about 6339.1150801985. The cubic root of 40184380 is about 342.5198596117.

The spelling of 40184380 in words is "forty million, one hundred eighty-four thousand, three hundred eighty".