662534040 has 128 divisors (see below), whose sum is σ = 2279093760. Its totient is φ = 150933504.

The previous prime is 662534039. The next prime is 662534063. The reversal of 662534040 is 40435266.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 662533989 and 662534007.

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, 290344 + ... + 292616.

It is an arithmetic number, because the mean of its divisors is an integer number (17805420).

Almost surely, 2^662534040 is an apocalyptic number.

662534040 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 662534040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1139546880).

662534040 is an abundant number, since it is smaller than the sum of its proper divisors (1616559720).

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

662534040 is a wasteful number, since it uses less digits than its factorization.

662534040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641 (or 2637 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 662534040 is about 25739.7365953889. The cubic root of 662534040 is about 871.7716309922.

The spelling of 662534040 in words is "six hundred sixty-two million, five hundred thirty-four thousand, forty".