42615432 has 24 divisors (see below), whose sum is σ = 115416990. Its totient is φ = 14205120.

The previous prime is 42615431. The next prime is 42615439. The reversal of 42615432 is 23451624.

42615432 is a `hidden beast` number, since 4 + 2 + 615 + 43 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35928036 + 6687396 = 5994^2 + 2586^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 42615396 and 42615405.

It is not an unprimeable number, because it can be changed into a prime (42615431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 295869 + ... + 296012.

Almost surely, 2^42615432 is an apocalyptic number.

It is an amenable number.

42615432 is an abundant number, since it is smaller than the sum of its proper divisors (72801558).

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

42615432 is a wasteful number, since it uses less digits than its factorization.

42615432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591893 (or 591886 counting only the distinct ones).

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

The square root of 42615432 is about 6528.0496321643. The cubic root of 42615432 is about 349.2922623600.

The spelling of 42615432 in words is "forty-two million, six hundred fifteen thousand, four hundred thirty-two".