1606497438 has 192 divisors, whose sum is σ = 4216320000. Its totient is φ = 407272320.

The previous prime is 1606497401. The next prime is 1606497439. The reversal of 1606497438 is 8347946061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606497439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10781788 + ... + 10781936.

It is an arithmetic number, because the mean of its divisors is an integer number (21960000).

Almost surely, 2^1606497438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606497438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2108160000).

1606497438 is an abundant number, since it is smaller than the sum of its proper divisors (2609822562).

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

1606497438 is a wasteful number, since it uses less digits than its factorization.

1606497438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 1606497438 is about 40081.1356875027. The cubic root of 1606497438 is about 1171.1881756739.

The spelling of 1606497438 in words is "one billion, six hundred six million, four hundred ninety-seven thousand, four hundred thirty-eight".