42403401 has 12 divisors (see below), whose sum is σ = 62112960. Its totient is φ = 27870360.

The previous prime is 42403399. The next prime is 42403409. The reversal of 42403401 is 10430424.

It is not a de Polignac number, because 42403401 - 2¹ = 42403399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42403409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32541 + ... + 33818.

It is an arithmetic number, because the mean of its divisors is an integer number (5176080).

Almost surely, 2^42403401 is an apocalyptic number.

It is an amenable number.

42403401 is a deficient number, since it is larger than the sum of its proper divisors (19709559).

42403401 is a wasteful number, since it uses less digits than its factorization.

42403401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66436 (or 66433 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42403401 is about 6511.7893854147. The cubic root of 42403401 is about 348.7120034143.

Adding to 42403401 its reverse (10430424), we get a palindrome (52833825).

The spelling of 42403401 in words is "forty-two million, four hundred three thousand, four hundred one".