40490544 has 20 divisors (see below), whose sum is σ = 104600696. Its totient is φ = 13496832.

The previous prime is 40490531. The next prime is 40490573. The reversal of 40490544 is 44509404.

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, 421729 + ... + 421824.

Almost surely, 2^40490544 is an apocalyptic number.

It is an amenable number.

40490544 is an abundant number, since it is smaller than the sum of its proper divisors (64110152).

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

40490544 is a wasteful number, since it uses less digits than its factorization.

40490544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843564 (or 843558 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 40490544 is about 6363.2180537838. The cubic root of 40490544 is about 343.3875437279.

Adding to 40490544 its reverse (44509404), we get a palindrome (84999948).

The spelling of 40490544 in words is "forty million, four hundred ninety thousand, five hundred forty-four".