1932157449 has 16 divisors (see below), whose sum is σ = 2863179840. Its totient is φ = 1287779040.

The previous prime is 1932157433. The next prime is 1932157463. The reversal of 1932157449 is 9447512391.

1932157449 is a `hidden beast` number, since 1 + 9 + 32 + 1 + 574 + 49 = 666.

It is not a de Polignac number, because 1932157449 - 2⁴ = 1932157433 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1932152449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151189 + ... + 163469.

It is an arithmetic number, because the mean of its divisors is an integer number (178948740).

Almost surely, 2^1932157449 is an apocalyptic number.

It is an amenable number.

1932157449 is a deficient number, since it is larger than the sum of its proper divisors (931022391).

1932157449 is a wasteful number, since it uses less digits than its factorization.

1932157449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18117 (or 18111 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1932157449 is about 43956.3129595739. The cubic root of 1932157449 is about 1245.5108195606.

The spelling of 1932157449 in words is "one billion, nine hundred thirty-two million, one hundred fifty-seven thousand, four hundred forty-nine".