1985979050 has 72 divisors (see below), whose sum is σ = 4100966688. Its totient is φ = 714938400.

The previous prime is 1985979011. The next prime is 1985979077. The reversal of 1985979050 is 509795891.

It is a super-2 number, since 2×1985979050² = 7888225574077805000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1985978983 and 1985979001.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 621557 + ... + 624743.

Almost surely, 2^1985979050 is an apocalyptic number.

1985979050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1985979050 is an abundant number, since it is smaller than the sum of its proper divisors (2114987638).

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

1985979050 is a wasteful number, since it uses less digits than its factorization.

1985979050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 53.

The square root of 1985979050 is about 44564.3248574462. The cubic root of 1985979050 is about 1256.9699278503.

The spelling of 1985979050 in words is "one billion, nine hundred eighty-five million, nine hundred seventy-nine thousand, fifty".