1903950940 has 24 divisors (see below), whose sum is σ = 4004803152. Its totient is φ = 760341120.

The previous prime is 1903950931. The next prime is 1903950941. The reversal of 1903950940 is 490593091.

It is a junction number, because it is equal to n+sod(n) for n = 1903950893 and 1903950902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1903950941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64806 + ... + 89485.

It is an arithmetic number, because the mean of its divisors is an integer number (166866798).

Almost surely, 2^1903950940 is an apocalyptic number.

1903950940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1903950940 is an abundant number, since it is smaller than the sum of its proper divisors (2100852212).

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

1903950940 is a wasteful number, since it uses less digits than its factorization.

1903950940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154917 (or 154915 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 1903950940 is about 43634.2862895682. The cubic root of 1903950940 is about 1239.4202414648.

The spelling of 1903950940 in words is "one billion, nine hundred three million, nine hundred fifty thousand, nine hundred forty".