2237940 has 36 divisors (see below), whose sum is σ = 6788964. Its totient is φ = 596736.

The previous prime is 2237933. The next prime is 2237941. The reversal of 2237940 is 497322.

It can be written as a sum of positive squares in 2 ways, for example, as 527076 + 1710864 = 726^2 + 1308^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2237941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6037 + ... + 6396.

2^2237940 is an apocalyptic number.

2237940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2237940 is an abundant number, since it is smaller than the sum of its proper divisors (4551024).

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

2237940 is a wasteful number, since it uses less digits than its factorization.

2237940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12448 (or 12443 counting only the distinct ones).

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

The square root of 2237940 is about 1495.9745987148. The cubic root of 2237940 is about 130.8025306022.

The spelling of 2237940 in words is "two million, two hundred thirty-seven thousand, nine hundred forty".