42651576 has 128 divisors (see below), whose sum is σ = 133920000. Its totient is φ = 12458880.

The previous prime is 42651569. The next prime is 42651613. The reversal of 42651576 is 67515624.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42651576.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68595 + ... + 69213.

It is an arithmetic number, because the mean of its divisors is an integer number (1046250).

Almost surely, 2^42651576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42651576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66960000).

42651576 is an abundant number, since it is smaller than the sum of its proper divisors (91268424).

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

42651576 is a wasteful number, since it uses less digits than its factorization.

42651576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 664 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 42651576 is about 6530.8174067264. The cubic root of 42651576 is about 349.3909844379.

The spelling of 42651576 in words is "forty-two million, six hundred fifty-one thousand, five hundred seventy-six".