42131078 has 32 divisors (see below), whose sum is σ = 73343232. Its totient is φ = 17960800.

The previous prime is 42131029. The next prime is 42131081. The reversal of 42131078 is 87013124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26033 + ... + 27603.

It is an arithmetic number, because the mean of its divisors is an integer number (2291976).

Almost surely, 2^42131078 is an apocalyptic number.

42131078 is a deficient number, since it is larger than the sum of its proper divisors (31212154).

42131078 is a wasteful number, since it uses less digits than its factorization.

42131078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 42131078 is about 6490.8457076101. The cubic root of 42131078 is about 347.9639005580.

The spelling of 42131078 in words is "forty-two million, one hundred thirty-one thousand, seventy-eight".