1606951428 has 12 divisors (see below), whose sum is σ = 3749553360. Its totient is φ = 535650472.

The previous prime is 1606951427. The next prime is 1606951439. The reversal of 1606951428 is 8241596061.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1606951428.

It is not an unprimeable number, because it can be changed into a prime (1606951421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66956298 + ... + 66956321.

It is an arithmetic number, because the mean of its divisors is an integer number (312462780).

Almost surely, 2^1606951428 is an apocalyptic number.

It is an amenable number.

1606951428 is an abundant number, since it is smaller than the sum of its proper divisors (2142601932).

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

1606951428 is a wasteful number, since it uses less digits than its factorization.

1606951428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133912626 (or 133912624 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1606951428 is about 40086.7986748755. The cubic root of 1606951428 is about 1171.2984897084.

The spelling of 1606951428 in words is "one billion, six hundred six million, nine hundred fifty-one thousand, four hundred twenty-eight".