42423407 has 8 divisors (see below), whose sum is σ = 47160960. Its totient is φ = 37896480.

The previous prime is 42423401. The next prime is 42423421. The reversal of 42423407 is 70432424.

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 42423407 - 2¹⁴ = 42407023 is a prime.

It is a super-2 number, since 2×42423407² = 3599490922975298, 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 (42423401) 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, 52232 + ... + 53037.

It is an arithmetic number, because the mean of its divisors is an integer number (5895120).

Almost surely, 2^42423407 is an apocalyptic number.

42423407 is a deficient number, since it is larger than the sum of its proper divisors (4737553).

42423407 is a wasteful number, since it uses less digits than its factorization.

42423407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105313.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 42423407 is about 6513.3253411756. The cubic root of 42423407 is about 348.7668357729.

The spelling of 42423407 in words is "forty-two million, four hundred twenty-three thousand, four hundred seven".