1523938996 has 12 divisors (see below), whose sum is σ = 2668426852. Its totient is φ = 761531328.

The previous prime is 1523938987. The next prime is 1523939033. The reversal of 1523938996 is 6998393251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 605848996 + 918090000 = 24614^2 + 30300^2 .

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, 101655 + ... + 115678.

Almost surely, 2^1523938996 is an apocalyptic number.

It is an amenable number.

1523938996 is a deficient number, since it is larger than the sum of its proper divisors (1144487856).

1523938996 is a wasteful number, since it uses less digits than its factorization.

1523938996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219090 (or 219088 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 55.

The square root of 1523938996 is about 39037.6612516682. The cubic root of 1523938996 is about 1150.7717556892.

The spelling of 1523938996 in words is "one billion, five hundred twenty-three million, nine hundred thirty-eight thousand, nine hundred ninety-six".