42015794 has 16 divisors (see below), whose sum is σ = 65333400. Its totient is φ = 20248704.

The previous prime is 42015793. The next prime is 42015851. The reversal of 42015794 is 49751024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39250225 + 2765569 = 6265^2 + 1663^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42015794.

It is not an unprimeable number, because it can be changed into a prime (42015793) 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, 5462 + ... + 10670.

Almost surely, 2^42015794 is an apocalyptic number.

42015794 is a deficient number, since it is larger than the sum of its proper divisors (23317606).

42015794 is a wasteful number, since it uses less digits than its factorization.

42015794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 42015794 is about 6481.9591174274. The cubic root of 42015794 is about 347.6462307462.

The spelling of 42015794 in words is "forty-two million, fifteen thousand, seven hundred ninety-four".