22735740 has 24 divisors (see below), whose sum is σ = 63660240. Its totient is φ = 6062848.

The previous prime is 22735711. The next prime is 22735747. The reversal of 22735740 is 4753722.

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 = 22735698 and 22735707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22735747) 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, 189405 + ... + 189524.

It is an arithmetic number, because the mean of its divisors is an integer number (2652510).

Almost surely, 2^22735740 is an apocalyptic number.

22735740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22735740 is an abundant number, since it is smaller than the sum of its proper divisors (40924500).

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

22735740 is a wasteful number, since it uses less digits than its factorization.

22735740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378941 (or 378939 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 22735740 is about 4768.2009185855. The cubic root of 22735740 is about 283.2933399914.

The spelling of 22735740 in words is "twenty-two million, seven hundred thirty-five thousand, seven hundred forty".