42378694 has 16 divisors (see below), whose sum is σ = 64974960. Its totient is φ = 20723040.

The previous prime is 42378667. The next prime is 42378703. The reversal of 42378694 is 49687324.

It is a self number, because there is not a number n which added to its sum of digits gives 42378694.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56977 + ... + 57715.

It is an arithmetic number, because the mean of its divisors is an integer number (4060935).

Almost surely, 2^42378694 is an apocalyptic number.

42378694 is a deficient number, since it is larger than the sum of its proper divisors (22596266).

42378694 is a wasteful number, since it uses less digits than its factorization.

42378694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its digits is 290304, while the sum is 43.

The square root of 42378694 is about 6509.8920113931. The cubic root of 42378694 is about 348.6442627681.

The spelling of 42378694 in words is "forty-two million, three hundred seventy-eight thousand, six hundred ninety-four".