40712238 has 72 divisors (see below), whose sum is σ = 105992640. Its totient is φ = 11249280.

The previous prime is 40712237. The next prime is 40712251. The reversal of 40712238 is 83221704.

40712238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40712237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26598 + ... + 28086.

It is an arithmetic number, because the mean of its divisors is an integer number (1472120).

Almost surely, 2^40712238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40712238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52996320).

40712238 is an abundant number, since it is smaller than the sum of its proper divisors (65280402).

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

40712238 is a wasteful number, since it uses less digits than its factorization.

40712238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 40712238 is about 6380.6142337552. The cubic root of 40712238 is about 344.0131090642.

It can be divided in two parts, 4071223 and 8, that added together give a triangular number (4071231 = T₂₈₅₃).

The spelling of 40712238 in words is "forty million, seven hundred twelve thousand, two hundred thirty-eight".