42643512 has 48 divisors (see below), whose sum is σ = 115797240. Its totient is φ = 14177088.

The previous prime is 42643501. The next prime is 42643519. The reversal of 42643512 is 21534624.

42643512 is a `hidden beast` number, since 4 + 2 + 643 + 5 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42643519) 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, 46563 + ... + 47469.

Almost surely, 2^42643512 is an apocalyptic number.

It is an amenable number.

42643512 is an abundant number, since it is smaller than the sum of its proper divisors (73153728).

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

42643512 is a wasteful number, since it uses less digits than its factorization.

42643512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1565 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 42643512 is about 6530.1999969373. The cubic root of 42643512 is about 349.3689636300.

It can be divided in two parts, 4264 and 3512, that added together give a 5-th power (7776 = 6⁵).

The spelling of 42643512 in words is "forty-two million, six hundred forty-three thousand, five hundred twelve".