203828373940 has 24 divisors (see below), whose sum is σ = 428623571880. Its totient is φ = 81420114048.

The previous prime is 203828373919. The next prime is 203828373997. The reversal of 203828373940 is 49373828302.

It can be written as a sum of positive squares in 4 ways, for example, as 88558617744 + 115269756196 = 297588^2 + 339514^2 .

It is a super-2 number, since 2×203828373940² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6937195 + ... + 6966514.

It is an arithmetic number, because the mean of its divisors is an integer number (17859315495).

Almost surely, 2^203828373940 is an apocalyptic number.

203828373940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203828373940 is an abundant number, since it is smaller than the sum of its proper divisors (224795197940).

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

203828373940 is a wasteful number, since it uses less digits than its factorization.

203828373940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13904451 (or 13904449 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 203828373940 in words is "two hundred three billion, eight hundred twenty-eight million, three hundred seventy-three thousand, nine hundred forty".