1983619490 has 32 divisors (see below), whose sum is σ = 3690489600. Its totient is φ = 767194624.

The previous prime is 1983619489. The next prime is 1983619501. The reversal of 1983619490 is 949163891.

It is a super-2 number, since 2×1983619490² = 7869492562215720200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13586 + ... + 64434.

It is an arithmetic number, because the mean of its divisors is an integer number (115327800).

Almost surely, 2^1983619490 is an apocalyptic number.

1983619490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1983619490 is a deficient number, since it is larger than the sum of its proper divisors (1706870110).

1983619490 is a wasteful number, since it uses less digits than its factorization.

1983619490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50986.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 1983619490 is about 44537.8433469785. The cubic root of 1983619490 is about 1256.4719247215.

The spelling of 1983619490 in words is "one billion, nine hundred eighty-three million, six hundred nineteen thousand, four hundred ninety".