40288914 has 64 divisors (see below), whose sum is σ = 92732160. Its totient is φ = 13122000.

The previous prime is 40288903. The next prime is 40288951. The reversal of 40288914 is 41988204.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 266739 + ... + 266889.

It is an arithmetic number, because the mean of its divisors is an integer number (1448940).

Almost surely, 2^40288914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40288914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46366080).

40288914 is an abundant number, since it is smaller than the sum of its proper divisors (52443246).

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

40288914 is an equidigital number, since it uses as much as digits as its factorization.

40288914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 40288914 is about 6347.3548821537. The cubic root of 40288914 is about 342.8166081544.

The spelling of 40288914 in words is "forty million, two hundred eighty-eight thousand, nine hundred fourteen".