40321416 has 64 divisors (see below), whose sum is σ = 109658880. Its totient is φ = 12303360.

The previous prime is 40321403. The next prime is 40321423. The reversal of 40321416 is 61412304.

It is a junction number, because it is equal to n+sod(n) for n = 40321392 and 40321401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13761 + ... + 16431.

It is an arithmetic number, because the mean of its divisors is an integer number (1713420).

Almost surely, 2^40321416 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 40321416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54829440).

40321416 is an abundant number, since it is smaller than the sum of its proper divisors (69337464).

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

40321416 is a wasteful number, since it uses less digits than its factorization.

40321416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 2730 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40321416 is about 6349.9146450956. The cubic root of 40321416 is about 342.9087694084.

The spelling of 40321416 in words is "forty million, three hundred twenty-one thousand, four hundred sixteen".