40022136 has 96 divisors (see below), whose sum is σ = 135158400. Its totient is φ = 10393920.

The previous prime is 40022107. The next prime is 40022137. The reversal of 40022136 is 63122004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40022137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1935 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (1407900).

Almost surely, 2^40022136 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 40022136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67579200).

40022136 is an abundant number, since it is smaller than the sum of its proper divisors (95136264).

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

40022136 is a wasteful number, since it uses less digits than its factorization.

40022136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249 (or 7242 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40022136 is about 6326.3050827477. The cubic root of 40022136 is about 342.0582644141.

The spelling of 40022136 in words is "forty million, twenty-two thousand, one hundred thirty-six".