42651510 has 64 divisors (see below), whose sum is σ = 112299264. Its totient is φ = 10281600.

The previous prime is 42651509. The next prime is 42651517. The reversal of 42651510 is 1515624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42651517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101100 + ... + 101520.

It is an arithmetic number, because the mean of its divisors is an integer number (1754676).

Almost surely, 2^42651510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42651510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56149632).

42651510 is an abundant number, since it is smaller than the sum of its proper divisors (69647754).

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

42651510 is a wasteful number, since it uses less digits than its factorization.

42651510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 42651510 is about 6530.8123537581. The cubic root of 42651510 is about 349.3908042193.

It can be divided in two parts, 4265 and 1510, that added together give a palindrome (5775).

The spelling of 42651510 in words is "forty-two million, six hundred fifty-one thousand, five hundred ten".