1292242988 has 12 divisors (see below), whose sum is σ = 2261943432. Its totient is φ = 645973440.

The previous prime is 1292242943. The next prime is 1292242999. The reversal of 1292242988 is 8892422921.

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, 16058 + ... + 53313.

It is an arithmetic number, because the mean of its divisors is an integer number (188495286).

Almost surely, 2^1292242988 is an apocalyptic number.

It is an amenable number.

1292242988 is a deficient number, since it is larger than the sum of its proper divisors (969700444).

1292242988 is a wasteful number, since it uses less digits than its factorization.

1292242988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74032 (or 74030 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 1292242988 is about 35947.7814058114. The cubic root of 1292242988 is about 1089.2177952888.

The spelling of 1292242988 in words is "one billion, two hundred ninety-two million, two hundred forty-two thousand, nine hundred eighty-eight".