1613406 has 16 divisors (see below), whose sum is σ = 3239424. Its totient is φ = 535704.

The previous prime is 1613399. The next prime is 1613407. The reversal of 1613406 is 6043161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2355 + ... + 2961.

It is an arithmetic number, because the mean of its divisors is an integer number (202464).

2^1613406 is an apocalyptic number.

1613406 is an abundant number, since it is smaller than the sum of its proper divisors (1626018).

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

1613406 is a wasteful number, since it uses less digits than its factorization.

1613406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1613406 is about 1270.1991969766. The cubic root of 1613406 is about 117.2864629283.

Adding to 1613406 its reverse (6043161), we get a palindrome (7656567).

The spelling of 1613406 in words is "one million, six hundred thirteen thousand, four hundred six".