22350040 has 32 divisors (see below), whose sum is σ = 50485680. Its totient is φ = 8904832.

The previous prime is 22350017. The next prime is 22350077. The reversal of 22350040 is 4005322.

It is a junction number, because it is equal to n+sod(n) for n = 22349996 and 22350023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10767 + ... + 12673.

Almost surely, 2^22350040 is an apocalyptic number.

22350040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22350040 is an abundant number, since it is smaller than the sum of its proper divisors (28135640).

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

22350040 is a wasteful number, since it uses less digits than its factorization.

22350040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211 (or 2207 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22350040 is about 4727.5828919227. The cubic root of 22350040 is about 281.6822200407.

Adding to 22350040 its reverse (4005322), we get a palindrome (26355362).

The spelling of 22350040 in words is "twenty-two million, three hundred fifty thousand, forty".