69478042 has 8 divisors (see below), whose sum is σ = 105644916. Its totient is φ = 34263072.

The previous prime is 69478027. The next prime is 69478049. The reversal of 69478042 is 24087496.

It can be written as a sum of positive squares in 2 ways, for example, as 60047001 + 9431041 = 7749^2 + 3071^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 69477986 and 69478004.

It is not an unprimeable number, because it can be changed into a prime (69478049) 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, 237793 + ... + 238084.

Almost surely, 2^69478042 is an apocalyptic number.

69478042 is a deficient number, since it is larger than the sum of its proper divisors (36166874).

69478042 is a wasteful number, since it uses less digits than its factorization.

69478042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475952.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 69478042 is about 8335.3489429057. The cubic root of 69478042 is about 411.1016219924.

The spelling of 69478042 in words is "sixty-nine million, four hundred seventy-eight thousand, forty-two".