40144772 has 24 divisors (see below), whose sum is σ = 71295000. Its totient is φ = 19777536.

The previous prime is 40144763. The next prime is 40144789. The reversal of 40144772 is 27744104.

It can be written as a sum of positive squares in 4 ways, for example, as 1032256 + 39112516 = 1016^2 + 6254^2 .

It is a super-2 number, since 2×40144772² = 3223205437863968, which contains 22 as substring.

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, 114854 + ... + 115202.

It is an arithmetic number, because the mean of its divisors is an integer number (2970625).

Almost surely, 2^40144772 is an apocalyptic number.

It is an amenable number.

40144772 is a deficient number, since it is larger than the sum of its proper divisors (31150228).

40144772 is a wasteful number, since it uses less digits than its factorization.

40144772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 40144772 is about 6335.9902146389. The cubic root of 40144772 is about 342.4072869624.

Adding to 40144772 its reverse (27744104), we get a palindrome (67888876).

The spelling of 40144772 in words is "forty million, one hundred forty-four thousand, seven hundred seventy-two".