40189224 has 64 divisors (see below), whose sum is σ = 107308800. Its totient is φ = 12498944.

The previous prime is 40189217. The next prime is 40189229. The reversal of 40189224 is 42298104.

It is a junction number, because it is equal to n+sod(n) for n = 40189191 and 40189200.

It is not an unprimeable number, because it can be changed into a prime (40189229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55537 + ... + 56255.

It is an arithmetic number, because the mean of its divisors is an integer number (1676700).

Almost surely, 2^40189224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40189224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53654400).

40189224 is an abundant number, since it is smaller than the sum of its proper divisors (67119576).

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

40189224 is a wasteful number, since it uses less digits than its factorization.

40189224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40189224 is about 6339.4971409411. The cubic root of 40189224 is about 342.5336220035.

The spelling of 40189224 in words is "forty million, one hundred eighty-nine thousand, two hundred twenty-four".