1421183673 has 48 divisors (see below), whose sum is σ = 2568057856. Its totient is φ = 737320320.

The previous prime is 1421183671. The next prime is 1421183707. The reversal of 1421183673 is 3763811241.

It is a happy number.

It is not a de Polignac number, because 1421183673 - 2¹ = 1421183671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421183671) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35736 + ... + 64182.

Almost surely, 2^1421183673 is an apocalyptic number.

1421183673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1421183673 is a deficient number, since it is larger than the sum of its proper divisors (1146874183).

1421183673 is a wasteful number, since it uses less digits than its factorization.

1421183673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28534 (or 28531 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1421183673 is about 37698.5898012114. The cubic root of 1421183673 is about 1124.3030871818.

The spelling of 1421183673 in words is "one billion, four hundred twenty-one million, one hundred eighty-three thousand, six hundred seventy-three".