40180284 has 36 divisors (see below), whose sum is σ = 102110736. Its totient is φ = 13321728.

The previous prime is 40180279. The next prime is 40180291. The reversal of 40180284 is 48208104.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×40180284² = 3228910444641312, 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 11 ways as a sum of consecutive naturals, for example, 4057 + ... + 9839.

Almost surely, 2^40180284 is an apocalyptic number.

It is an amenable number.

40180284 is an abundant number, since it is smaller than the sum of its proper divisors (61930452).

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

40180284 is a wasteful number, since it uses less digits than its factorization.

40180284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986 (or 5981 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 40180284 is about 6338.7919984805. The cubic root of 40180284 is about 342.5082215158.

Adding to 40180284 its reverse (48208104), we get a palindrome (88388388).

The spelling of 40180284 in words is "forty million, one hundred eighty thousand, two hundred eighty-four".