42780150 has 144 divisors (see below), whose sum is σ = 136491264. Its totient is φ = 9758880.

The previous prime is 42780149. The next prime is 42780163. The reversal of 42780150 is 5108724.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 84799 + ... + 85301.

It is an arithmetic number, because the mean of its divisors is an integer number (947856).

Almost surely, 2^42780150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42780150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68245632).

42780150 is an abundant number, since it is smaller than the sum of its proper divisors (93711114).

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

42780150 is a wasteful number, since it uses less digits than its factorization.

42780150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 42780150 is about 6540.6536370611. The cubic root of 42780150 is about 349.7417142044.

Adding to 42780150 its reverse (5108724), we get a palindrome (47888874).

The spelling of 42780150 in words is "forty-two million, seven hundred eighty thousand, one hundred fifty".