497637238 has 12 divisors (see below), whose sum is σ = 868326372. Its totient is φ = 213273060.

The previous prime is 497637221. The next prime is 497637271. The reversal of 497637238 is 832736794.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 497637191 and 497637200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2538868 + ... + 2539063.

It is an arithmetic number, because the mean of its divisors is an integer number (72360531).

Almost surely, 2^497637238 is an apocalyptic number.

497637238 is a deficient number, since it is larger than the sum of its proper divisors (370689134).

497637238 is a wasteful number, since it uses less digits than its factorization.

497637238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077947 (or 5077940 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 49.

The square root of 497637238 is about 22307.7842467601. The cubic root of 497637238 is about 792.4483345262.

The spelling of 497637238 in words is "four hundred ninety-seven million, six hundred thirty-seven thousand, two hundred thirty-eight".