1606054428 has 72 divisors (see below), whose sum is σ = 4438586880. Its totient is φ = 485609760.

The previous prime is 1606054361. The next prime is 1606054433. The reversal of 1606054428 is 8244506061.

1606054428 is a `hidden beast` number, since 1 + 6 + 0 + 605 + 4 + 42 + 8 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1606054392 and 1606054401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185451 + ... + 193917.

It is an arithmetic number, because the mean of its divisors is an integer number (61647040).

Almost surely, 2^1606054428 is an apocalyptic number.

1606054428 is a gapful number since it is divisible by the number (18) 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 1606054428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2219293440).

1606054428 is an abundant number, since it is smaller than the sum of its proper divisors (2832532452).

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

1606054428 is a wasteful number, since it uses less digits than its factorization.

1606054428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967 (or 8962 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1606054428 is about 40075.6088911947. The cubic root of 1606054428 is about 1171.0805096087.

The spelling of 1606054428 in words is "one billion, six hundred six million, fifty-four thousand, four hundred twenty-eight".