1872242788 has 12 divisors (see below), whose sum is σ = 3528457660. Its totient is φ = 864112032.

The previous prime is 1872242773. The next prime is 1872242797. The reversal of 1872242788 is 8872422781.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 751198464 + 1121044324 = 27408^2 + 33482^2 .

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, 18002283 + ... + 18002386.

Almost surely, 2^1872242788 is an apocalyptic number.

It is an amenable number.

1872242788 is a deficient number, since it is larger than the sum of its proper divisors (1656214872).

1872242788 is a wasteful number, since it uses less digits than its factorization.

1872242788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36004686 (or 36004684 counting only the distinct ones).

The product of its digits is 802816, while the sum is 49.

The square root of 1872242788 is about 43269.4209344197. The cubic root of 1872242788 is about 1232.5013078007.

The spelling of 1872242788 in words is "one billion, eight hundred seventy-two million, two hundred forty-two thousand, seven hundred eighty-eight".