1903949020 has 12 divisors (see below), whose sum is σ = 3998292984. Its totient is φ = 761579600.

The previous prime is 1903949009. The next prime is 1903949083. The reversal of 1903949020 is 209493091.

It is a congruent number.

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, 47598706 + ... + 47598745.

It is an arithmetic number, because the mean of its divisors is an integer number (333191082).

Almost surely, 2^1903949020 is an apocalyptic number.

1903949020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1903949020 is an abundant number, since it is smaller than the sum of its proper divisors (2094343964).

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

1903949020 is a wasteful number, since it uses less digits than its factorization.

1903949020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95197460 (or 95197458 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 1903949020 is about 43634.2642885153. The cubic root of 1903949020 is about 1239.4198248420.

The spelling of 1903949020 in words is "one billion, nine hundred three million, nine hundred forty-nine thousand, twenty".