1861094424 has 64 divisors (see below), whose sum is σ = 5488957440. Its totient is φ = 514586880.

The previous prime is 1861094423. The next prime is 1861094437. The reversal of 1861094424 is 4244901681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1861094423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173469 + ... + 183884.

It is an arithmetic number, because the mean of its divisors is an integer number (85764960).

Almost surely, 2^1861094424 is an apocalyptic number.

1861094424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1861094424 is an abundant number, since it is smaller than the sum of its proper divisors (3627863016).

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

1861094424 is a wasteful number, since it uses less digits than its factorization.

1861094424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357400 (or 357396 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1861094424 is about 43140.4036142454. The cubic root of 1861094424 is about 1230.0501056990.

The spelling of 1861094424 in words is "one billion, eight hundred sixty-one million, ninety-four thousand, four hundred twenty-four".