42405126 has 16 divisors (see below), whose sum is σ = 86201328. Its totient is φ = 13903200.

The previous prime is 42405113. The next prime is 42405127. The reversal of 42405126 is 62150424.

It is a super-2 number, since 2×42405126² = 3596389422151752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42405096 and 42405105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42405127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57565 + ... + 58296.

It is an arithmetic number, because the mean of its divisors is an integer number (5387583).

Almost surely, 2^42405126 is an apocalyptic number.

42405126 is an abundant number, since it is smaller than the sum of its proper divisors (43796202).

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

42405126 is a wasteful number, since it uses less digits than its factorization.

42405126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115927.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 42405126 is about 6511.9218361402. The cubic root of 42405126 is about 348.7167319662.

The spelling of 42405126 in words is "forty-two million, four hundred five thousand, one hundred twenty-six".