40018484 has 24 divisors (see below), whose sum is σ = 80421600. Its totient is φ = 17232480.

The previous prime is 40018457. The next prime is 40018499. The reversal of 40018484 is 48481004.

It is a congruent number.

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, 23099 + ... + 24770.

It is an arithmetic number, because the mean of its divisors is an integer number (3350900).

Almost surely, 2^40018484 is an apocalyptic number.

40018484 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40018484 is an abundant number, since it is smaller than the sum of its proper divisors (40403116).

40018484 is a wasteful number, since it uses less digits than its factorization.

40018484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47903 (or 47901 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 40018484 is about 6326.0164400672. The cubic root of 40018484 is about 342.0478598821.

Adding to 40018484 its reverse (48481004), we get a palindrome (88499488).

The spelling of 40018484 in words is "forty million, eighteen thousand, four hundred eighty-four".