42533646 has 32 divisors (see below), whose sum is σ = 89516448. Its totient is φ = 13455360.

The previous prime is 42533641. The next prime is 42533657. The reversal of 42533646 is 64633524.

It is a super-2 number, since 2×42533646² = 3618222084106632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42533641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6766 + ... + 11438.

It is an arithmetic number, because the mean of its divisors is an integer number (2797389).

Almost surely, 2^42533646 is an apocalyptic number.

42533646 is an abundant number, since it is smaller than the sum of its proper divisors (46982802).

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

42533646 is a wasteful number, since it uses less digits than its factorization.

42533646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756.

The product of its digits is 51840, while the sum is 33.

The square root of 42533646 is about 6521.7824250737. The cubic root of 42533646 is about 349.0686695581.

The spelling of 42533646 in words is "forty-two million, five hundred thirty-three thousand, six hundred forty-six".