40346220 has 48 divisors (see below), whose sum is σ = 113752800. Its totient is φ = 10684416.

The previous prime is 40346213. The next prime is 40346227. The reversal of 40346220 is 2264304.

40346220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40346213) and next prime (40346227).

It is not an unprimeable number, because it can be changed into a prime (40346227) 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 15 ways as a sum of consecutive naturals, for example, 6684 + ... + 11196.

It is an arithmetic number, because the mean of its divisors is an integer number (2369850).

Almost surely, 2^40346220 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 40346220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56876400).

40346220 is an abundant number, since it is smaller than the sum of its proper divisors (73406580).

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

40346220 is a wasteful number, since it uses less digits than its factorization.

40346220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674 (or 4672 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40346220 is about 6351.8674419418. The cubic root of 40346220 is about 342.9790692348.

The spelling of 40346220 in words is "forty million, three hundred forty-six thousand, two hundred twenty".