1872450413 has 4 divisors (see below), whose sum is σ = 1890989628. Its totient is φ = 1853911200.

The previous prime is 1872450383. The next prime is 1872450427. The reversal of 1872450413 is 3140542781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3140542781 = 1091 ⋅2878591.

It can be written as a sum of positive squares in 2 ways, for example, as 1486642249 + 385808164 = 38557^2 + 19642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1872450413 - 2¹⁴ = 1872434029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872450113) 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, 9269456 + ... + 9269657.

It is an arithmetic number, because the mean of its divisors is an integer number (472747407).

Almost surely, 2^1872450413 is an apocalyptic number.

It is an amenable number.

1872450413 is a deficient number, since it is larger than the sum of its proper divisors (18539215).

1872450413 is a wasteful number, since it uses less digits than its factorization.

1872450413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18539214.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 1872450413 is about 43271.8200795853. The cubic root of 1872450413 is about 1232.5468661060.

The spelling of 1872450413 in words is "one billion, eight hundred seventy-two million, four hundred fifty thousand, four hundred thirteen".