42015156 has 48 divisors (see below), whose sum is σ = 104079360. Its totient is φ = 13154400.

The previous prime is 42015151. The next prime is 42015157. The reversal of 42015156 is 65151024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42015151) 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, 28231 + ... + 29681.

It is an arithmetic number, because the mean of its divisors is an integer number (2168320).

Almost surely, 2^42015156 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 42015156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52039680).

42015156 is an abundant number, since it is smaller than the sum of its proper divisors (62064204).

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

42015156 is a wasteful number, since it uses less digits than its factorization.

42015156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1602 counting only the distinct ones).

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

The square root of 42015156 is about 6481.9099037244. The cubic root of 42015156 is about 347.6444710951.

It can be divided in two parts, 420 and 15156, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 42015156 in words is "forty-two million, fifteen thousand, one hundred fifty-six".