42949116 has 120 divisors (see below), whose sum is σ = 132945120. Its totient is φ = 11829888.

The previous prime is 42949111. The next prime is 42949121. The reversal of 42949116 is 61194924.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42949111) and next prime (42949121).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42949111) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 65446 + ... + 66098.

It is an arithmetic number, because the mean of its divisors is an integer number (1107876).

Almost surely, 2^42949116 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 42949116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66472560).

42949116 is an abundant number, since it is smaller than the sum of its proper divisors (89996004).

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

42949116 is a wasteful number, since it uses less digits than its factorization.

42949116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 694 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 42949116 is about 6553.5575071865. The cubic root of 42949116 is about 350.2015600926.

The spelling of 42949116 in words is "forty-two million, nine hundred forty-nine thousand, one hundred sixteen".