40392244 has 12 divisors (see below), whose sum is σ = 73124100. Its totient is φ = 19499648.

The previous prime is 40392241. The next prime is 40392251. The reversal of 40392244 is 44229304.

It can be written as a sum of positive squares in 2 ways, for example, as 26419600 + 13972644 = 5140^2 + 3738^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40392241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 173989 + ... + 174220.

It is an arithmetic number, because the mean of its divisors is an integer number (6093675).

Almost surely, 2^40392244 is an apocalyptic number.

It is an amenable number.

40392244 is a deficient number, since it is larger than the sum of its proper divisors (32731856).

40392244 is a wasteful number, since it uses less digits than its factorization.

40392244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348242 (or 348240 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 40392244 is about 6355.4892809287. The cubic root of 40392244 is about 343.1094347747.

The spelling of 40392244 in words is "forty million, three hundred ninety-two thousand, two hundred forty-four".