40439088 has 70 divisors (see below), whose sum is σ = 117506244. Its totient is φ = 13475808.

The previous prime is 40439081. The next prime is 40439101. The reversal of 40439088 is 88093404.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40439081) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 9931 + ... + 13397.

Almost surely, 2^40439088 is an apocalyptic number.

40439088 is a gapful number since it is divisible by the number (48) 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 40439088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58753122).

40439088 is an abundant number, since it is smaller than the sum of its proper divisors (77067156).

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

40439088 is an equidigital number, since it uses as much as digits as its factorization.

40439088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493 (or 3472 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40439088 is about 6359.1735312067. The cubic root of 40439088 is about 343.2420213597.

It can be divided in two parts, 4043 and 9088, that added together give a palindrome (13131).

The spelling of 40439088 in words is "forty million, four hundred thirty-nine thousand, eighty-eight".