1874492643 has 4 divisors (see below), whose sum is σ = 2499323528. Its totient is φ = 1249661760.

The previous prime is 1874492629. The next prime is 1874492647. The reversal of 1874492643 is 3462944781.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1874492643 - 2⁶ = 1874492579 is a prime.

It is a super-2 number, since 2×1874492643² = 7027445337322250898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1874492592 and 1874492601.

It is not an unprimeable number, because it can be changed into a prime (1874492647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312415438 + ... + 312415443.

It is an arithmetic number, because the mean of its divisors is an integer number (624830882).

Almost surely, 2^1874492643 is an apocalyptic number.

1874492643 is a deficient number, since it is larger than the sum of its proper divisors (624830885).

1874492643 is an equidigital number, since it uses as much as digits as its factorization.

1874492643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624830884.

The product of its digits is 1161216, while the sum is 48.

The square root of 1874492643 is about 43295.4113388474. The cubic root of 1874492643 is about 1232.9948049132.

The spelling of 1874492643 in words is "one billion, eight hundred seventy-four million, four hundred ninety-two thousand, six hundred forty-three".