490045749 has 8 divisors (see below), whose sum is σ = 653654112. Its totient is φ = 326567280.

The previous prime is 490045733. The next prime is 490045753. The reversal of 490045749 is 947540094.

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

It is not a de Polignac number, because 490045749 - 2⁴ = 490045733 is a prime.

It is a super-2 number, since 2×490045749² = 480289672225942002, 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 490045749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490045789) 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, 23299 + ... + 39024.

It is an arithmetic number, because the mean of its divisors is an integer number (81706764).

Almost surely, 2^490045749 is an apocalyptic number.

It is an amenable number.

490045749 is a deficient number, since it is larger than the sum of its proper divisors (163608363).

490045749 is a wasteful number, since it uses less digits than its factorization.

490045749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64947.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 490045749 is about 22136.9769616359. The cubic root of 490045749 is about 788.3980511252.

The spelling of 490045749 in words is "four hundred ninety million, forty-five thousand, seven hundred forty-nine".