2273940 has 48 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 606240.

The previous prime is 2273927. The next prime is 2273959. The reversal of 2273940 is 493722.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^2273940 is an apocalyptic number.

2273940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2273940 is an abundant number, since it is smaller than the sum of its proper divisors (4802220).

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

2273940 is a wasteful number, since it uses less digits than its factorization.

2273940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229 (or 4221 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2273940 is about 1507.9588853812. The cubic root of 2273940 is about 131.5001758974.

The spelling of 2273940 in words is "two million, two hundred seventy-three thousand, nine hundred forty".