1933081428 has 96 divisors (see below), whose sum is σ = 4761187200. Its totient is φ = 609762816.

The previous prime is 1933081421. The next prime is 1933081433. The reversal of 1933081428 is 8241803391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1933081421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2855026 + ... + 2855702.

It is an arithmetic number, because the mean of its divisors is an integer number (49595700).

Almost surely, 2^1933081428 is an apocalyptic number.

It is an amenable number.

1933081428 is an abundant number, since it is smaller than the sum of its proper divisors (2828105772).

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

1933081428 is a wasteful number, since it uses less digits than its factorization.

1933081428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1933081428 is about 43966.8219001556. The cubic root of 1933081428 is about 1245.7093269243.

The spelling of 1933081428 in words is "one billion, nine hundred thirty-three million, eighty-one thousand, four hundred twenty-eight".