42100770 has 64 divisors (see below), whose sum is σ = 107153280. Its totient is φ = 10556928.

The previous prime is 42100769. The next prime is 42100771. The reversal of 42100770 is 7700124.

42100770 is nontrivially palindromic in base 8.

It is an interprime number because it is at equal distance from previous prime (42100769) and next prime (42100771).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42100771) 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, 132652 + ... + 132968.

It is an arithmetic number, because the mean of its divisors is an integer number (1674270).

Almost surely, 2^42100770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42100770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53576640).

42100770 is an abundant number, since it is smaller than the sum of its proper divisors (65052510).

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

42100770 is a wasteful number, since it uses less digits than its factorization.

42100770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 42100770 is about 6488.5106149254. The cubic root of 42100770 is about 347.8804418203.

Adding to 42100770 its reverse (7700124), we get a palindrome (49800894).

The spelling of 42100770 in words is "forty-two million, one hundred thousand, seven hundred seventy".