42473778 has 64 divisors (see below), whose sum is σ = 94832640. Its totient is φ = 12621312.

The previous prime is 42473773. The next prime is 42473789. The reversal of 42473778 is 87737424.

It is not an unprimeable number, because it can be changed into a prime (42473771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254251 + ... + 254417.

It is an arithmetic number, because the mean of its divisors is an integer number (1481760).

Almost surely, 2^42473778 is an apocalyptic number.

42473778 is an abundant number, since it is smaller than the sum of its proper divisors (52358862).

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

42473778 is a wasteful number, since it uses less digits than its factorization.

42473778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 263424, while the sum is 42.

The square root of 42473778 is about 6517.1909593014. The cubic root of 42473778 is about 348.9048160936.

The spelling of 42473778 in words is "forty-two million, four hundred seventy-three thousand, seven hundred seventy-eight".