40501144 has 16 divisors (see below), whose sum is σ = 76239000. Its totient is φ = 20170752.

The previous prime is 40501129. The next prime is 40501163. The reversal of 40501144 is 44110504.

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, 7794 + ... + 11905.

Almost surely, 2^40501144 is an apocalyptic number.

It is an amenable number.

40501144 is a deficient number, since it is larger than the sum of its proper divisors (35737856).

40501144 is a wasteful number, since it uses less digits than its factorization.

40501144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19962 (or 19958 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40501144 is about 6364.0509111729. The cubic root of 40501144 is about 343.4175062000.

Adding to 40501144 its reverse (44110504), we get a palindrome (84611648).

The spelling of 40501144 in words is "forty million, five hundred one thousand, one hundred forty-four".