20372622 has 8 divisors (see below), whose sum is σ = 40745256. Its totient is φ = 6790872.

The previous prime is 20372591. The next prime is 20372659. The reversal of 20372622 is 22627302.

It is a sphenic number, since it is the product of 3 distinct primes.

20372622 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20372592 and 20372601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697713 + ... + 1697724.

It is an arithmetic number, because the mean of its divisors is an integer number (5093157).

Almost surely, 2^20372622 is an apocalyptic number.

20372622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20372622 is a wasteful number, since it uses less digits than its factorization.

20372622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395442.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20372622 is about 4513.6041031530. The cubic root of 20372622 is about 273.1171524188.

Adding to 20372622 its reverse (22627302), we get a palindrome (42999924).

The spelling of 20372622 in words is "twenty million, three hundred seventy-two thousand, six hundred twenty-two".