1613244 has 12 divisors (see below), whose sum is σ = 3764264. Its totient is φ = 537744.

The previous prime is 1613201. The next prime is 1613279. The reversal of 1613244 is 4423161.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1613244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67207 + ... + 67230.

2^1613244 is an apocalyptic number.

It is an amenable number.

1613244 is an abundant number, since it is smaller than the sum of its proper divisors (2151020).

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

1613244 is a wasteful number, since it uses less digits than its factorization.

1613244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134444 (or 134442 counting only the distinct ones).

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

The square root of 1613244 is about 1270.1354258503. The cubic root of 1613244 is about 117.2825372698.

The spelling of 1613244 in words is "one million, six hundred thirteen thousand, two hundred forty-four".