1868749254 has 24 divisors (see below), whose sum is σ = 4179569472. Its totient is φ = 602822160.

The previous prime is 1868749249. The next prime is 1868749261. The reversal of 1868749254 is 4529478681.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1868749254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1673949 + ... + 1675064.

It is an arithmetic number, because the mean of its divisors is an integer number (174148728).

Almost surely, 2^1868749254 is an apocalyptic number.

1868749254 is an abundant number, since it is smaller than the sum of its proper divisors (2310820218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1868749254 is a wasteful number, since it uses less digits than its factorization.

1868749254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349052 (or 3349049 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 1868749254 is about 43229.0325360168. The cubic root of 1868749254 is about 1231.7342302659.

The spelling of 1868749254 in words is "one billion, eight hundred sixty-eight million, seven hundred forty-nine thousand, two hundred fifty-four".