603490381 has 18 divisors (see below), whose sum is σ = 663142590. Its totient is φ = 548907840.

The previous prime is 603490367. The next prime is 603490403. The reversal of 603490381 is 183094306.

It can be written as a sum of positive squares in 9 ways, for example, as 577633156 + 25857225 = 24034^2 + 5085^2 .

It is not a de Polignac number, because 603490381 - 2²¹ = 601393229 is a prime.

It is a super-2 number, since 2×603490381² = 728401279919050322, 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 (603490301) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3334111 + ... + 3334291.

It is an arithmetic number, because the mean of its divisors is an integer number (36841255).

Almost surely, 2^603490381 is an apocalyptic number.

It is an amenable number.

603490381 is a deficient number, since it is larger than the sum of its proper divisors (59652209).

603490381 is a wasteful number, since it uses less digits than its factorization.

603490381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 603490381 is about 24566.0412154665. The cubic root of 603490381 is about 845.0650048611.

The spelling of 603490381 in words is "six hundred three million, four hundred ninety thousand, three hundred eighty-one".