22630542 has 32 divisors (see below), whose sum is σ = 49870080. Its totient is φ = 6789120.

The previous prime is 22630529. The next prime is 22630583. The reversal of 22630542 is 24503622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5134 + ... + 8462.

It is an arithmetic number, because the mean of its divisors is an integer number (1558440).

Almost surely, 2^22630542 is an apocalyptic number.

22630542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22630542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24935040).

22630542 is an abundant number, since it is smaller than the sum of its proper divisors (27239538).

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

22630542 is a wasteful number, since it uses less digits than its factorization.

22630542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22630542 is about 4757.1569240461. The cubic root of 22630542 is about 282.8557327170.

Subtracting 22630542 from its reverse (24503622), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 22630542 in words is "twenty-two million, six hundred thirty thousand, five hundred forty-two".