42494727 has 16 divisors (see below), whose sum is σ = 61920000. Its totient is φ = 25708800.

The previous prime is 42494723. The next prime is 42494743. The reversal of 42494727 is 72749424.

It is not a de Polignac number, because 42494727 - 2² = 42494723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42494723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33399 + ... + 34647.

It is an arithmetic number, because the mean of its divisors is an integer number (3870000).

Almost surely, 2^42494727 is an apocalyptic number.

42494727 is a deficient number, since it is larger than the sum of its proper divisors (19425273).

42494727 is a wasteful number, since it uses less digits than its factorization.

42494727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its digits is 112896, while the sum is 39.

The square root of 42494727 is about 6518.7979720191. The cubic root of 42494727 is about 348.9621691711.

The spelling of 42494727 in words is "forty-two million, four hundred ninety-four thousand, seven hundred twenty-seven".