42407407 has 8 divisors (see below), whose sum is σ = 49648032. Its totient is φ = 35462400.

The previous prime is 42407381. The next prime is 42407419. The reversal of 42407407 is 70470424.

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 42407407 - 2¹⁵ = 42374639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42407507) 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, 73594 + ... + 74167.

It is an arithmetic number, because the mean of its divisors is an integer number (6206004).

Almost surely, 2^42407407 is an apocalyptic number.

42407407 is a deficient number, since it is larger than the sum of its proper divisors (7240625).

42407407 is a wasteful number, since it uses less digits than its factorization.

42407407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147809.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 42407407 is about 6512.0969740937. The cubic root of 42407407 is about 348.7229844226.

The spelling of 42407407 in words is "forty-two million, four hundred seven thousand, four hundred seven".