4517990 has 8 divisors (see below), whose sum is σ = 8132400. Its totient is φ = 1807192.

The previous prime is 4517987. The next prime is 4517993. The reversal of 4517990 is 997154.

It is an interprime number because it is at equal distance from previous prime (4517987) and next prime (4517993).

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

It is a self number, because there is not a number n which added to its sum of digits gives 4517990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4517993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225890 + ... + 225909.

It is an arithmetic number, because the mean of its divisors is an integer number (1016550).

Almost surely, 2^4517990 is an apocalyptic number.

4517990 is a deficient number, since it is larger than the sum of its proper divisors (3614410).

4517990 is a wasteful number, since it uses less digits than its factorization.

4517990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451806.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 4517990 is about 2125.5563977462. The cubic root of 4517990 is about 165.3160761052.

The spelling of 4517990 in words is "four million, five hundred seventeen thousand, nine hundred ninety".