662167440 has 480 divisors, whose sum is σ = 2659651200. Its totient is φ = 149990400.

The previous prime is 662167427. The next prime is 662167483. The reversal of 662167440 is 44761266.

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

It is a junction number, because it is equal to n+sod(n) for n = 662167395 and 662167404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21360225 + ... + 21360255.

It is an arithmetic number, because the mean of its divisors is an integer number (5540940).

Almost surely, 2^662167440 is an apocalyptic number.

662167440 is a gapful number since it is divisible by the number (60) 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 662167440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329825600).

662167440 is an abundant number, since it is smaller than the sum of its proper divisors (1997483760).

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

662167440 is a wasteful number, since it uses less digits than its factorization.

662167440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 662167440 is about 25732.6143250156. The cubic root of 662167440 is about 871.6108088431.

The spelling of 662167440 in words is "six hundred sixty-two million, one hundred sixty-seven thousand, four hundred forty".