15940052 has 6 divisors (see below), whose sum is σ = 27895098. Its totient is φ = 7970024.

The previous prime is 15940049. The next prime is 15940073. The reversal of 15940052 is 25004951.

It can be written as a sum of positive squares in only one way, i.e., 15100996 + 839056 = 3886^2 + 916^2 .

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, 1992503 + ... + 1992510.

It is an arithmetic number, because the mean of its divisors is an integer number (4649183).

Almost surely, 2^15940052 is an apocalyptic number.

It is an amenable number.

15940052 is a deficient number, since it is larger than the sum of its proper divisors (11955046).

15940052 is a wasteful number, since it uses less digits than its factorization.

15940052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985017 (or 3985015 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 15940052 is about 3992.4994677520. The cubic root of 15940052 is about 251.6691088360.

The spelling of 15940052 in words is "fifteen million, nine hundred forty thousand, fifty-two".