40660052 has 12 divisors (see below), whose sum is σ = 71808660. Its totient is φ = 20143296.

The previous prime is 40660049. The next prime is 40660079. The reversal of 40660052 is 25006604.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 5779216 = 5906^2 + 2404^2 .

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, 46193 + ... + 47064.

It is an arithmetic number, because the mean of its divisors is an integer number (5984055).

Almost surely, 2^40660052 is an apocalyptic number.

It is an amenable number.

40660052 is a deficient number, since it is larger than the sum of its proper divisors (31148608).

40660052 is a wasteful number, since it uses less digits than its factorization.

40660052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93370 (or 93368 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40660052 is about 6376.5235042302. The cubic root of 40660052 is about 343.8660579137.

Adding to 40660052 its reverse (25006604), we get a palindrome (65666656).

The spelling of 40660052 in words is "forty million, six hundred sixty thousand, fifty-two".