22478196 has 48 divisors (see below), whose sum is σ = 57153600. Its totient is φ = 6834432.

The previous prime is 22478179. The next prime is 22478227. The reversal of 22478196 is 69187422.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (48384) is a multiple of the sum of its prime factors (1728).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13075 + ... + 14693.

It is an arithmetic number, because the mean of its divisors is an integer number (1190700).

Almost surely, 2^22478196 is an apocalyptic number.

22478196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22478196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28576800).

22478196 is an abundant number, since it is smaller than the sum of its proper divisors (34675404).

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

22478196 is a wasteful number, since it uses less digits than its factorization.

22478196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728 (or 1726 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 22478196 is about 4741.1175897672. The cubic root of 22478196 is about 282.2195865264.

The spelling of 22478196 in words is "twenty-two million, four hundred seventy-eight thousand, one hundred ninety-six".