22470340 has 12 divisors (see below), whose sum is σ = 47187756. Its totient is φ = 8988128.

The previous prime is 22470317. The next prime is 22470347. The reversal of 22470340 is 4307422.

It can be written as a sum of positive squares in 2 ways, for example, as 10023556 + 12446784 = 3166^2 + 3528^2 .

It is not an unprimeable number, because it can be changed into a prime (22470347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561739 + ... + 561778.

It is an arithmetic number, because the mean of its divisors is an integer number (3932313).

Almost surely, 2^22470340 is an apocalyptic number.

22470340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22470340 is an abundant number, since it is smaller than the sum of its proper divisors (24717416).

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

22470340 is a wasteful number, since it uses less digits than its factorization.

22470340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123526 (or 1123524 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 22470340 is about 4740.2890207244. The cubic root of 22470340 is about 282.1867046556.

Adding to 22470340 its reverse (4307422), we get a palindrome (26777762).

The spelling of 22470340 in words is "twenty-two million, four hundred seventy thousand, three hundred forty".