1985932080 has 480 divisors, whose sum is σ = 7780002048. Its totient is φ = 466560000.

The previous prime is 1985932063. The next prime is 1985932141. The reversal of 1985932080 is 802395891.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7911955 + ... + 7912205.

Almost surely, 2^1985932080 is an apocalyptic number.

1985932080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1985932080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3890001024).

1985932080 is an abundant number, since it is smaller than the sum of its proper divisors (5794069968).

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

1985932080 is a wasteful number, since it uses less digits than its factorization.

1985932080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 1985932080 is about 44563.7978632881. The cubic root of 1985932080 is about 1256.9600183226.

The spelling of 1985932080 in words is "one billion, nine hundred eighty-five million, nine hundred thirty-two thousand, eighty".