3402816 has 56 divisors (see below), whose sum is σ = 9265920. Its totient is φ = 1101312.

The previous prime is 3402803. The next prime is 3402821. The reversal of 3402816 is 6182043.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6865 + ... + 7343.

Almost surely, 2^3402816 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 3402816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4632960).

3402816 is an abundant number, since it is smaller than the sum of its proper divisors (5863104).

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

3402816 is a wasteful number, since it uses less digits than its factorization.

3402816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3402816 is about 1844.6723286264. The cubic root of 3402816 is about 150.4109619293.

Adding to 3402816 its reverse (6182043), we get a palindrome (9584859).

The spelling of 3402816 in words is "three million, four hundred two thousand, eight hundred sixteen".