662001984 has 196 divisors, whose sum is σ = 2252069664. Its totient is φ = 189050112.

The previous prime is 662001979. The next prime is 662002001. The reversal of 662001984 is 489100266.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 325579 + ... + 327605.

Almost surely, 2^662001984 is an apocalyptic number.

662001984 is a gapful number since it is divisible by the number (64) 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 662001984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126034832).

662001984 is an abundant number, since it is smaller than the sum of its proper divisors (1590067680).

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

662001984 is an equidigital number, since it uses as much as digits as its factorization.

662001984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 662001984 is about 25729.3992156832. The cubic root of 662001984 is about 871.5382062341.

The spelling of 662001984 in words is "six hundred sixty-two million, one thousand, nine hundred eighty-four".