1866474992 has 10 divisors (see below), whose sum is σ = 3616295328. Its totient is φ = 933237488.

The previous prime is 1866474991. The next prime is 1866474997. The reversal of 1866474992 is 2994746681.

It is a super-2 number, since 2×1866474992² = 6967457791522800128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1866474991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58327328 + ... + 58327359.

Almost surely, 2^1866474992 is an apocalyptic number.

It is an amenable number.

1866474992 is a deficient number, since it is larger than the sum of its proper divisors (1749820336).

1866474992 is a wasteful number, since it uses less digits than its factorization.

1866474992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116654695 (or 116654689 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 1866474992 is about 43202.7197292022. The cubic root of 1866474992 is about 1231.2343551930.

The spelling of 1866474992 in words is "one billion, eight hundred sixty-six million, four hundred seventy-four thousand, nine hundred ninety-two".