40144044 has 24 divisors (see below), whose sum is σ = 94581760. Its totient is φ = 13251024.

The previous prime is 40144037. The next prime is 40144061. The reversal of 40144044 is 44044104.

It is a super-2 number, since 2×40144044² = 3223088537347872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40144044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15004 + ... + 17475.

Almost surely, 2^40144044 is an apocalyptic number.

It is an amenable number.

40144044 is an abundant number, since it is smaller than the sum of its proper divisors (54437716).

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

40144044 is a wasteful number, since it uses less digits than its factorization.

40144044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32589 (or 32587 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 40144044 is about 6335.9327647948. The cubic root of 40144044 is about 342.4052171702.

Adding to 40144044 its reverse (44044104), we get a palindrome (84188148).

The spelling of 40144044 in words is "forty million, one hundred forty-four thousand, forty-four".