42390694 has 8 divisors (see below), whose sum is σ = 63617400. Its totient is φ = 21184896.

The previous prime is 42390659. The next prime is 42390697. The reversal of 42390694 is 49609324.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42390697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657 + ... + 9355.

It is an arithmetic number, because the mean of its divisors is an integer number (7952175).

Almost surely, 2^42390694 is an apocalyptic number.

42390694 is a deficient number, since it is larger than the sum of its proper divisors (21226706).

42390694 is a wasteful number, since it uses less digits than its factorization.

42390694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10454.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 42390694 is about 6510.8136204318. The cubic root of 42390694 is about 348.6771671667.

The spelling of 42390694 in words is "forty-two million, three hundred ninety thousand, six hundred ninety-four".