497740442 has 4 divisors (see below), whose sum is σ = 746610666. Its totient is φ = 248870220.

The previous prime is 497740409. The next prime is 497740457. The reversal of 497740442 is 244047794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 488012281 + 9728161 = 22091^2 + 3119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 497740442.

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 as a sum of consecutive naturals, namely, 124435109 + ... + 124435112.

Almost surely, 2^497740442 is an apocalyptic number.

497740442 is a deficient number, since it is larger than the sum of its proper divisors (248870224).

497740442 is a wasteful number, since it uses less digits than its factorization.

497740442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248870223.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 497740442 is about 22310.0973104108. The cubic root of 497740442 is about 792.5031121692.

The spelling of 497740442 in words is "four hundred ninety-seven million, seven hundred forty thousand, four hundred forty-two".