42731110 has 16 divisors (see below), whose sum is σ = 78178032. Its totient is φ = 16812000.

The previous prime is 42731083. The next prime is 42731141. The reversal of 42731110 is 1113724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34416 + ... + 35635.

It is an arithmetic number, because the mean of its divisors is an integer number (4886127).

Almost surely, 2^42731110 is an apocalyptic number.

42731110 is a deficient number, since it is larger than the sum of its proper divisors (35446922).

42731110 is a wasteful number, since it uses less digits than its factorization.

42731110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70119.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 42731110 is about 6536.9037012947. The cubic root of 42731110 is about 349.6080237621.

Adding to 42731110 its reverse (1113724), we get a palindrome (43844834).

The spelling of 42731110 in words is "forty-two million, seven hundred thirty-one thousand, one hundred ten".