1900803542 has 16 divisors (see below), whose sum is σ = 3186270864. Its totient is φ = 842928000.

The previous prime is 1900803523. The next prime is 1900803547. The reversal of 1900803542 is 2453080091.

It is a super-2 number, since 2×1900803542² = 7226108210559491528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900803499 and 1900803508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900803547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052759 + ... + 1054562.

It is an arithmetic number, because the mean of its divisors is an integer number (199141929).

Almost surely, 2^1900803542 is an apocalyptic number.

1900803542 is a deficient number, since it is larger than the sum of its proper divisors (1285467322).

1900803542 is a wasteful number, since it uses less digits than its factorization.

1900803542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107375.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1900803542 is about 43598.2057199605. The cubic root of 1900803542 is about 1238.7369079782.

The spelling of 1900803542 in words is "one billion, nine hundred million, eight hundred three thousand, five hundred forty-two".