40660244 has 6 divisors (see below), whose sum is σ = 71155434. Its totient is φ = 20330120.

The previous prime is 40660237. The next prime is 40660303. The reversal of 40660244 is 44206604.

It can be written as a sum of positive squares in only one way, i.e., 40170244 + 490000 = 6338^2 + 700^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082527 + ... + 5082534.

It is an arithmetic number, because the mean of its divisors is an integer number (11859239).

Almost surely, 2^40660244 is an apocalyptic number.

It is an amenable number.

40660244 is a deficient number, since it is larger than the sum of its proper divisors (30495190).

40660244 is a wasteful number, since it uses less digits than its factorization.

40660244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10165065 (or 10165063 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 40660244 is about 6376.5385594380. The cubic root of 40660244 is about 343.8665991671.

Adding to 40660244 its reverse (44206604), we get a palindrome (84866848).

It can be divided in two parts, 40660 and 244, that added together give a palindrome (40904).

The spelling of 40660244 in words is "forty million, six hundred sixty thousand, two hundred forty-four".