1836401942 has 8 divisors (see below), whose sum is σ = 2756877456. Its totient is φ = 917442792.

The previous prime is 1836401939. The next prime is 1836401947. The reversal of 1836401942 is 2491046381.

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

It is a junction number, because it is equal to n+sod(n) for n = 1836401896 and 1836401905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1836401947) 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, 376058 + ... + 380909.

It is an arithmetic number, because the mean of its divisors is an integer number (344609682).

Almost surely, 2^1836401942 is an apocalyptic number.

1836401942 is a deficient number, since it is larger than the sum of its proper divisors (920475514).

1836401942 is a wasteful number, since it uses less digits than its factorization.

1836401942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758182.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1836401942 is about 42853.2605760635. The cubic root of 1836401942 is about 1224.5858807336.

The spelling of 1836401942 in words is "one billion, eight hundred thirty-six million, four hundred one thousand, nine hundred forty-two".