1900495984 has 20 divisors (see below), whose sum is σ = 3702787560. Its totient is φ = 944937920.

The previous prime is 1900495981. The next prime is 1900495997. The reversal of 1900495984 is 4895940091.

It is a happy number.

It is a super-2 number, since 2×1900495984² = 7223769970400256512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900495981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328927 + ... + 334654.

It is an arithmetic number, because the mean of its divisors is an integer number (185139378).

Almost surely, 2^1900495984 is an apocalyptic number.

It is an amenable number.

1900495984 is a deficient number, since it is larger than the sum of its proper divisors (1802291576).

1900495984 is a wasteful number, since it uses less digits than its factorization.

1900495984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663768 (or 663762 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 1900495984 is about 43594.6783908311. The cubic root of 1900495984 is about 1238.6700934289.

The spelling of 1900495984 in words is "one billion, nine hundred million, four hundred ninety-five thousand, nine hundred eighty-four".