1838022002 has 4 divisors (see below), whose sum is σ = 2757033006. Its totient is φ = 919011000.

The previous prime is 1838021957. The next prime is 1838022007. The reversal of 1838022002 is 2002208381.

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

It can be written as a sum of positive squares in only one way, i.e., 1742979001 + 95043001 = 41749^2 + 9749^2 .

It is not an unprimeable number, because it can be changed into a prime (1838022007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459505499 + ... + 459505502.

Almost surely, 2^1838022002 is an apocalyptic number.

1838022002 is a deficient number, since it is larger than the sum of its proper divisors (919011004).

1838022002 is an equidigital number, since it uses as much as digits as its factorization.

1838022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919011003.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1838022002 is about 42872.1588213143. The cubic root of 1838022002 is about 1224.9458817130.

The spelling of 1838022002 in words is "one billion, eight hundred thirty-eight million, twenty-two thousand, two".