1630116 has 18 divisors (see below), whose sum is σ = 4120662. Its totient is φ = 543360.

The previous prime is 1630093. The next prime is 1630117. The reversal of 1630116 is 6110361.

It can be written as a sum of positive squares in only one way, i.e., 1572516 + 57600 = 1254^2 + 240^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1630117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22605 + ... + 22676.

2^1630116 is an apocalyptic number.

It is an amenable number.

1630116 is an abundant number, since it is smaller than the sum of its proper divisors (2490546).

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

1630116 is a wasteful number, since it uses less digits than its factorization.

1630116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45291 (or 45286 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1630116 is about 1276.7599617783. The cubic root of 1630116 is about 117.6899838853.

Adding to 1630116 its reverse (6110361), we get a palindrome (7740477).

The spelling of 1630116 in words is "one million, six hundred thirty thousand, one hundred sixteen".