490855751 has 8 divisors (see below), whose sum is σ = 499650000. Its totient is φ = 482077440.

The previous prime is 490855721. The next prime is 490855763. The reversal of 490855751 is 157558094.

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 490855751 - 2²² = 486661447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490855721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70361 + ... + 77021.

It is an arithmetic number, because the mean of its divisors is an integer number (62456250).

Almost surely, 2^490855751 is an apocalyptic number.

490855751 is a deficient number, since it is larger than the sum of its proper divisors (8794249).

490855751 is a wasteful number, since it uses less digits than its factorization.

490855751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7969.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 490855751 is about 22155.2646339420. The cubic root of 490855751 is about 788.8321959443.

The spelling of 490855751 in words is "four hundred ninety million, eight hundred fifty-five thousand, seven hundred fifty-one".