1945575428 has 12 divisors (see below), whose sum is σ = 3552790080. Its totient is φ = 930492552.

The previous prime is 1945575389. The next prime is 1945575431. The reversal of 1945575428 is 8245755491.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10573688 + ... + 10573871.

It is an arithmetic number, because the mean of its divisors is an integer number (296065840).

Almost surely, 2^1945575428 is an apocalyptic number.

It is an amenable number.

1945575428 is a deficient number, since it is larger than the sum of its proper divisors (1607214652).

1945575428 is a wasteful number, since it uses less digits than its factorization.

1945575428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21147586 (or 21147584 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 50.

The square root of 1945575428 is about 44108.6774682715. The cubic root of 1945575428 is about 1248.3873450098.

The spelling of 1945575428 in words is "one billion, nine hundred forty-five million, five hundred seventy-five thousand, four hundred twenty-eight".