1893045540 has 48 divisors (see below), whose sum is σ = 5612326272. Its totient is φ = 475117056.

The previous prime is 1893045509. The next prime is 1893045551. The reversal of 1893045540 is 455403981.

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, 926944 + ... + 928983.

It is an arithmetic number, because the mean of its divisors is an integer number (116923464).

Almost surely, 2^1893045540 is an apocalyptic number.

1893045540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1893045540 is an abundant number, since it is smaller than the sum of its proper divisors (3719280732).

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

1893045540 is a wasteful number, since it uses less digits than its factorization.

1893045540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855956 (or 1855954 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1893045540 is about 43509.1431770381. The cubic root of 1893045540 is about 1237.0493361555.

The spelling of 1893045540 in words is "one billion, eight hundred ninety-three million, forty-five thousand, five hundred forty".