1822874172 has 24 divisors (see below), whose sum is σ = 4860998016. Its totient is φ = 520821168.

The previous prime is 1822874171. The next prime is 1822874191. The reversal of 1822874172 is 2714782281.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822874171) 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 7 ways as a sum of consecutive naturals, for example, 10850358 + ... + 10850525.

It is an arithmetic number, because the mean of its divisors is an integer number (202541584).

Almost surely, 2^1822874172 is an apocalyptic number.

1822874172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1822874172 is an abundant number, since it is smaller than the sum of its proper divisors (3038123844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1822874172 is a wasteful number, since it uses less digits than its factorization.

1822874172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21700897 (or 21700895 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 1822874172 is about 42695.1305420185. The cubic root of 1822874172 is about 1221.5715150866.

The spelling of 1822874172 in words is "one billion, eight hundred twenty-two million, eight hundred seventy-four thousand, one hundred seventy-two".