1945428000 has 96 divisors (see below), whose sum is σ = 6373261440. Its totient is φ = 518777600.

The previous prime is 1945427999. The next prime is 1945428011. The reversal of 1945428000 is 8245491.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69060 + ... + 93059.

It is an arithmetic number, because the mean of its divisors is an integer number (66388140).

Almost surely, 2^1945428000 is an apocalyptic number.

1945428000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1945428000 is an abundant number, since it is smaller than the sum of its proper divisors (4427833440).

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

1945428000 is a wasteful number, since it uses less digits than its factorization.

1945428000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162147 (or 162129 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1945428000 is about 44107.0062461736. The cubic root of 1945428000 is about 1248.3558115972.

The spelling of 1945428000 in words is "one billion, nine hundred forty-five million, four hundred twenty-eight thousand".