1822274940 has 24 divisors (see below), whose sum is σ = 5102370000. Its totient is φ = 485939968.

The previous prime is 1822274921. The next prime is 1822274957. The reversal of 1822274940 is 494722281.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15185565 + ... + 15185684.

It is an arithmetic number, because the mean of its divisors is an integer number (212598750).

Almost surely, 2^1822274940 is an apocalyptic number.

1822274940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1822274940 is an abundant number, since it is smaller than the sum of its proper divisors (3280095060).

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

1822274940 is a wasteful number, since it uses less digits than its factorization.

1822274940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30371261 (or 30371259 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1822274940 is about 42688.1123967786. The cubic root of 1822274940 is about 1221.4376450004.

The spelling of 1822274940 in words is "one billion, eight hundred twenty-two million, two hundred seventy-four thousand, nine hundred forty".