42011478 has 24 divisors (see below), whose sum is σ = 94983408. Its totient is φ = 13394832.

The previous prime is 42011477. The next prime is 42011507. The reversal of 42011478 is 87411024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42011477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50325 + ... + 51152.

It is an arithmetic number, because the mean of its divisors is an integer number (3957642).

Almost surely, 2^42011478 is an apocalyptic number.

42011478 is an abundant number, since it is smaller than the sum of its proper divisors (52971930).

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

42011478 is a wasteful number, since it uses less digits than its factorization.

42011478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101508 (or 101505 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 42011478 is about 6481.6261848397. The cubic root of 42011478 is about 347.6343265520.

The spelling of 42011478 in words is "forty-two million, eleven thousand, four hundred seventy-eight".