662249045 has 8 divisors (see below), whose sum is σ = 809693496. Its totient is φ = 519802816.

The previous prime is 662249023. The next prime is 662249057. The reversal of 662249045 is 540942266.

It can be written as a sum of positive squares in 4 ways, for example, as 158785201 + 503463844 = 12601^2 + 22438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 662249045 - 2²⁰ = 661200469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249262 + ... + 1249791.

It is an arithmetic number, because the mean of its divisors is an integer number (101211687).

Almost surely, 2^662249045 is an apocalyptic number.

It is an amenable number.

662249045 is a deficient number, since it is larger than the sum of its proper divisors (147444451).

662249045 is a wasteful number, since it uses less digits than its factorization.

662249045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499111.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 662249045 is about 25734.1999098476. The cubic root of 662249045 is about 871.6466129183.

The spelling of 662249045 in words is "six hundred sixty-two million, two hundred forty-nine thousand, forty-five".