42561346 has 8 divisors (see below), whose sum is σ = 63950400. Its totient is φ = 21244548.

The previous prime is 42561341. The next prime is 42561377. The reversal of 42561346 is 64316524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42561346² = 3622936346663432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42561341) 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, 16566 + ... + 18961.

It is an arithmetic number, because the mean of its divisors is an integer number (7993800).

Almost surely, 2^42561346 is an apocalyptic number.

42561346 is a deficient number, since it is larger than the sum of its proper divisors (21389054).

42561346 is a wasteful number, since it uses less digits than its factorization.

42561346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36128.

The product of its digits is 17280, while the sum is 31.

The square root of 42561346 is about 6523.9057319983. The cubic root of 42561346 is about 349.1444300034.

The spelling of 42561346 in words is "forty-two million, five hundred sixty-one thousand, three hundred forty-six".