1868520022 has 8 divisors (see below), whose sum is σ = 2867961096. Its totient is φ = 912532992.

The previous prime is 1868520007. The next prime is 1868520037. The reversal of 1868520022 is 2200258681.

It is an interprime number because it is at equal distance from previous prime (1868520007) and next prime (1868520037).

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

It is a super-2 number, since 2×1868520022² = 6982734145229760968, 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 1868520022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10863403 + ... + 10863574.

It is an arithmetic number, because the mean of its divisors is an integer number (358495137).

Almost surely, 2^1868520022 is an apocalyptic number.

1868520022 is a deficient number, since it is larger than the sum of its proper divisors (999441074).

1868520022 is a wasteful number, since it uses less digits than its factorization.

1868520022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21727022.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1868520022 is about 43226.3810884048. The cubic root of 1868520022 is about 1231.6838642352.

The spelling of 1868520022 in words is "one billion, eight hundred sixty-eight million, five hundred twenty thousand, twenty-two".