1872801394 has 8 divisors (see below), whose sum is σ = 2809473408. Its totient is φ = 936310260.

The previous prime is 1872801373. The next prime is 1872801397. The reversal of 1872801394 is 4931082781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1872801394² = 7014770122736686472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1872801394.

It is not an unprimeable number, because it can be changed into a prime (1872801397) 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, 15402 + ... + 63109.

It is an arithmetic number, because the mean of its divisors is an integer number (351184176).

Almost surely, 2^1872801394 is an apocalyptic number.

1872801394 is a deficient number, since it is larger than the sum of its proper divisors (936672014).

1872801394 is a wasteful number, since it uses less digits than its factorization.

1872801394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90440.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1872801394 is about 43275.8754273094. The cubic root of 1872801394 is about 1232.6238727745.

The spelling of 1872801394 in words is "one billion, eight hundred seventy-two million, eight hundred one thousand, three hundred ninety-four".