662042040 has 128 divisors (see below), whose sum is σ = 2177867520. Its totient is φ = 159667200.

The previous prime is 662042039. The next prime is 662042053. The reversal of 662042040 is 40240266.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 662042040.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 277332 + ... + 279708.

It is an arithmetic number, because the mean of its divisors is an integer number (17014590).

Almost surely, 2^662042040 is an apocalyptic number.

662042040 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 662042040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088933760).

662042040 is an abundant number, since it is smaller than the sum of its proper divisors (1515825480).

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

662042040 is a wasteful number, since it uses less digits than its factorization.

662042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 662042040 is about 25730.1776130675. The cubic root of 662042040 is about 871.5557840416. Note that the first 3 decimals are identical.

The spelling of 662042040 in words is "six hundred sixty-two million, forty-two thousand, forty".