1802994238 has 8 divisors (see below), whose sum is σ = 2777585832. Its totient is φ = 877132296.

The previous prime is 1802994233. The next prime is 1802994241. The reversal of 1802994238 is 8324992081.

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

It is a super-2 number, since 2×1802994238² = 6501576444522401288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802994233) 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, 12182320 + ... + 12182467.

It is an arithmetic number, because the mean of its divisors is an integer number (347198229).

Almost surely, 2^1802994238 is an apocalyptic number.

1802994238 is a deficient number, since it is larger than the sum of its proper divisors (974591594).

1802994238 is a wasteful number, since it uses less digits than its factorization.

1802994238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24364826.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1802994238 is about 42461.6796417664. The cubic root of 1802994238 is about 1217.1145276910.

The spelling of 1802994238 in words is "one billion, eight hundred two million, nine hundred ninety-four thousand, two hundred thirty-eight".