40223120 has 120 divisors (see below), whose sum is σ = 112635648. Its totient is φ = 13305600.

The previous prime is 40223111. The next prime is 40223123. The reversal of 40223120 is 2132204.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 40223095 and 40223104.

It is not an unprimeable number, because it can be changed into a prime (40223123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121355 + ... + 121685.

Almost surely, 2^40223120 is an apocalyptic number.

40223120 is a gapful number since it is divisible by the number (40) 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 40223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56317824).

40223120 is an abundant number, since it is smaller than the sum of its proper divisors (72412528).

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

40223120 is a wasteful number, since it uses less digits than its factorization.

40223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40223120 is about 6342.1699756471. The cubic root of 40223120 is about 342.6298937225.

Adding to 40223120 its reverse (2132204), we get a palindrome (42355324).

The spelling of 40223120 in words is "forty million, two hundred twenty-three thousand, one hundred twenty".