2351616 has 40 divisors (see below), whose sum is σ = 6268944. Its totient is φ = 783360.

The previous prime is 2351603. The next prime is 2351617. The reversal of 2351616 is 6161532.

It is a super-2 number, since 2×2351616² = 11060195622912, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2351617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771 + ... + 2301.

2^2351616 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 2351616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3134472).

2351616 is an abundant number, since it is smaller than the sum of its proper divisors (3917328).

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

2351616 is an equidigital number, since it uses as much as digits as its factorization.

2351616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1536 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 2351616 is about 1533.4979621767. The cubic root of 2351616 is about 132.9807573872.

It can be divided in two parts, 23516 and 16, that added together give a palindrome (23532).

The spelling of 2351616 in words is "two million, three hundred fifty-one thousand, six hundred sixteen".