662278240 has 48 divisors (see below), whose sum is σ = 1684993968. Its totient is φ = 244532736.

The previous prime is 662278213. The next prime is 662278241. The reversal of 662278240 is 42872266.

It is a super-2 number, since 2×662278240² = 877224934354995200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 662278240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662278241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157122 + ... + 161281.

It is an arithmetic number, because the mean of its divisors is an integer number (35104041).

Almost surely, 2^662278240 is an apocalyptic number.

It is an amenable number.

662278240 is an abundant number, since it is smaller than the sum of its proper divisors (1022715728).

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

662278240 is a wasteful number, since it uses less digits than its factorization.

662278240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318431 (or 318423 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 662278240 is about 25734.7671448568. The cubic root of 662278240 is about 871.6594214677.

The spelling of 662278240 in words is "six hundred sixty-two million, two hundred seventy-eight thousand, two hundred forty".