497402381 has 6 divisors (see below), whose sum is σ = 578610990. Its totient is φ = 426344856.

The previous prime is 497402377. The next prime is 497402413. The reversal of 497402381 is 183204794.

It can be written as a sum of positive squares in only one way, i.e., 394379881 + 103022500 = 19859^2 + 10150^2 .

It is not a de Polignac number, because 497402381 - 2² = 497402377 is a prime.

It is a super-2 number, since 2×497402381² = 494818257248938322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497402681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5075486 + ... + 5075583.

It is an arithmetic number, because the mean of its divisors is an integer number (96435165).

Almost surely, 2^497402381 is an apocalyptic number.

It is an amenable number.

497402381 is a deficient number, since it is larger than the sum of its proper divisors (81208609).

497402381 is a wasteful number, since it uses less digits than its factorization.

497402381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151083 (or 10151076 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 497402381 is about 22302.5196110215. The cubic root of 497402381 is about 792.3236511155.

The spelling of 497402381 in words is "four hundred ninety-seven million, four hundred two thousand, three hundred eighty-one".