40231356 has 48 divisors (see below), whose sum is σ = 103958400. Its totient is φ = 12006720.

The previous prime is 40231351. The next prime is 40231357. The reversal of 40231356 is 65313204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231351) 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, 6570 + ... + 11118.

It is an arithmetic number, because the mean of its divisors is an integer number (2165800).

Almost surely, 2^40231356 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 40231356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51979200).

40231356 is an abundant number, since it is smaller than the sum of its proper divisors (63727044).

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

40231356 is a wasteful number, since it uses less digits than its factorization.

40231356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 40231356 is about 6342.8192469910. The cubic root of 40231356 is about 342.6532775145.

The spelling of 40231356 in words is "forty million, two hundred thirty-one thousand, three hundred fifty-six".