42794815 has 16 divisors (see below), whose sum is σ = 58963968. Its totient is φ = 29208096.

The previous prime is 42794813. The next prime is 42794819. The reversal of 42794815 is 51849724.

It is a cyclic number.

It is not a de Polignac number, because 42794815 - 2¹ = 42794813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42794813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5064 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (3685248).

Almost surely, 2^42794815 is an apocalyptic number.

42794815 is a deficient number, since it is larger than the sum of its proper divisors (16169153).

42794815 is a wasteful number, since it uses less digits than its factorization.

42794815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718.

The product of its digits is 80640, while the sum is 40.

The square root of 42794815 is about 6541.7746063282. The cubic root of 42794815 is about 349.7816733621.

The spelling of 42794815 in words is "forty-two million, seven hundred ninety-four thousand, eight hundred fifteen".