42155316 has 60 divisors (see below), whose sum is σ = 125952288. Its totient is φ = 12043728.

The previous prime is 42155293. The next prime is 42155317. The reversal of 42155316 is 61355124.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42155316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42155317) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7026 + ... + 11561.

Almost surely, 2^42155316 is an apocalyptic number.

It is an amenable number.

42155316 is an abundant number, since it is smaller than the sum of its proper divisors (83796972).

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

42155316 is a wasteful number, since it uses less digits than its factorization.

42155316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18610 (or 18599 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 42155316 is about 6492.7125302142. The cubic root of 42155316 is about 348.0306156180.

The spelling of 42155316 in words is "forty-two million, one hundred fifty-five thousand, three hundred sixteen".