1606534452 has 144 divisors (see below), whose sum is σ = 4497575040. Its totient is φ = 494968320.

The previous prime is 1606534439. The next prime is 1606534453. The reversal of 1606534452 is 2544356061.

1606534452 is a `hidden beast` number, since 1 + 606 + 5 + 3 + 4 + 45 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606534453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2386788 + ... + 2387460.

It is an arithmetic number, because the mean of its divisors is an integer number (31233160).

Almost surely, 2^1606534452 is an apocalyptic number.

1606534452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606534452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2248787520).

1606534452 is an abundant number, since it is smaller than the sum of its proper divisors (2891040588).

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

1606534452 is a wasteful number, since it uses less digits than its factorization.

1606534452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1606534452 is about 40081.5974232565. The cubic root of 1606534452 is about 1171.1971704027.

The spelling of 1606534452 in words is "one billion, six hundred six million, five hundred thirty-four thousand, four hundred fifty-two".