42047436 has 12 divisors (see below), whose sum is σ = 98110712. Its totient is φ = 14015808.

The previous prime is 42047431. The next prime is 42047441. The reversal of 42047436 is 63474024.

It is an interprime number because it is at equal distance from previous prime (42047431) and next prime (42047441).

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

It is not an unprimeable number, because it can be changed into a prime (42047431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751965 + ... + 1751988.

Almost surely, 2^42047436 is an apocalyptic number.

It is an amenable number.

42047436 is an abundant number, since it is smaller than the sum of its proper divisors (56063276).

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

42047436 is a wasteful number, since it uses less digits than its factorization.

42047436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503960 (or 3503958 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 42047436 is about 6484.3994324841. The cubic root of 42047436 is about 347.7334793792.

The spelling of 42047436 in words is "forty-two million, forty-seven thousand, four hundred thirty-six".