2203091940 has 72 divisors (see below), whose sum is σ = 7175794752. Its totient is φ = 503563200.

The previous prime is 2203091929. The next prime is 2203091941. The reversal of 2203091940 is 491903022.

It is a super-2 number, since 2×2203091940² = 9707228192185927200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2203091898 and 2203091907.

It is not an unprimeable number, because it can be changed into a prime (2203091941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 371736 + ... + 377615.

It is an arithmetic number, because the mean of its divisors is an integer number (99663816).

Almost surely, 2^2203091940 is an apocalyptic number.

2203091940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2203091940 is an abundant number, since it is smaller than the sum of its proper divisors (4972702812).

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

2203091940 is a wasteful number, since it uses less digits than its factorization.

2203091940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749377 (or 749368 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 2203091940 is about 46937.1062167237. The cubic root of 2203091940 is about 1301.2004571972.

Adding to 2203091940 its reverse (491903022), we get a palindrome (2694994962).

The spelling of 2203091940 in words is "two billion, two hundred three million, ninety-one thousand, nine hundred forty".