42487770 has 32 divisors (see below), whose sum is σ = 109815552. Its totient is φ = 10458432.

The previous prime is 42487717. The next prime is 42487787. The reversal of 42487770 is 7778424.

42487770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54082 + ... + 54861.

It is an arithmetic number, because the mean of its divisors is an integer number (3431736).

Almost surely, 2^42487770 is an apocalyptic number.

42487770 is an abundant number, since it is smaller than the sum of its proper divisors (67327782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42487770 is a wasteful number, since it uses less digits than its factorization.

42487770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108966.

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 42487770 is about 6518.2643395309. The cubic root of 42487770 is about 348.9431247509.

The spelling of 42487770 in words is "forty-two million, four hundred eighty-seven thousand, seven hundred seventy".