1872242807 has 4 divisors (see below), whose sum is σ = 1898612496. Its totient is φ = 1845873120.

The previous prime is 1872242797. The next prime is 1872242831. The reversal of 1872242807 is 7082422781.

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

It is a cyclic number.

It is not a de Polignac number, because 1872242807 - 2¹⁶ = 1872177271 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 (1872242837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13184738 + ... + 13184879.

It is an arithmetic number, because the mean of its divisors is an integer number (474653124).

Almost surely, 2^1872242807 is an apocalyptic number.

1872242807 is a deficient number, since it is larger than the sum of its proper divisors (26369689).

1872242807 is an equidigital number, since it uses as much as digits as its factorization.

1872242807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26369688.

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 1872242807 is about 43269.4211539743. The cubic root of 1872242807 is about 1232.5013119700.

The spelling of 1872242807 in words is "one billion, eight hundred seventy-two million, two hundred forty-two thousand, eight hundred seven".