22803440 has 40 divisors (see below), whose sum is σ = 57840048. Its totient is φ = 8291840.

The previous prime is 22803427. The next prime is 22803449. The reversal of 22803440 is 4430822.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22803449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12077 + ... + 13836.

Almost surely, 2^22803440 is an apocalyptic number.

22803440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22803440 is an abundant number, since it is smaller than the sum of its proper divisors (35036608).

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

22803440 is a wasteful number, since it uses less digits than its factorization.

22803440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25937 (or 25931 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 22803440 is about 4775.2947553005. The cubic root of 22803440 is about 283.5742479981.

The spelling of 22803440 in words is "twenty-two million, eight hundred three thousand, four hundred forty".