42011436 has 12 divisors (see below), whose sum is σ = 98026712. Its totient is φ = 14003808.

The previous prime is 42011423. The next prime is 42011441. The reversal of 42011436 is 63411024.

Added to its reverse (63411024) it gives a triangular number (105422460 = T₁₄₅₂₀).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750465 + ... + 1750488.

Almost surely, 2^42011436 is an apocalyptic number.

It is an amenable number.

42011436 is an abundant number, since it is smaller than the sum of its proper divisors (56015276).

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

42011436 is a wasteful number, since it uses less digits than its factorization.

42011436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500960 (or 3500958 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42011436 is about 6481.6229449113. The cubic root of 42011436 is about 347.6342107056.

Adding to 42011436 its reverse (63411024), we get a triangular number (105422460 = T₁₄₅₂₀).

The spelling of 42011436 in words is "forty-two million, eleven thousand, four hundred thirty-six".