42403013 has 8 divisors (see below), whose sum is σ = 43084800. Its totient is φ = 41725008.

The previous prime is 42402967. The next prime is 42403019. The reversal of 42403013 is 31030424.

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

It is a cyclic number.

It is not a de Polignac number, because 42403013 - 2¹⁴ = 42386629 is a prime.

It is a super-2 number, since 2×42403013² = 3596031022956338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42402982 and 42403000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42403019) 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, 28748 + ... + 30186.

It is an arithmetic number, because the mean of its divisors is an integer number (5385600).

Almost surely, 2^42403013 is an apocalyptic number.

It is an amenable number.

42403013 is a deficient number, since it is larger than the sum of its proper divisors (681787).

42403013 is a wasteful number, since it uses less digits than its factorization.

42403013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42403013 is about 6511.7595932282. The cubic root of 42403013 is about 348.7109398151.

Adding to 42403013 its reverse (31030424), we get a palindrome (73433437).

The spelling of 42403013 in words is "forty-two million, four hundred three thousand, thirteen".