42955542 has 64 divisors (see below), whose sum is σ = 114854400. Its totient is φ = 11625120.

The previous prime is 42955537. The next prime is 42955547. The reversal of 42955542 is 24555924.

It is an interprime number because it is at equal distance from previous prime (42955537) and next prime (42955547).

It is a junction number, because it is equal to n+sod(n) for n = 42955497 and 42955506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42955547) 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, 4192 + ... + 10172.

It is an arithmetic number, because the mean of its divisors is an integer number (1794600).

Almost surely, 2^42955542 is an apocalyptic number.

42955542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 42955542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57427200).

42955542 is an abundant number, since it is smaller than the sum of its proper divisors (71898858).

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

42955542 is a wasteful number, since it uses less digits than its factorization.

42955542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018 (or 6012 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 42955542 is about 6554.0477569209. The cubic root of 42955542 is about 350.2190248137.

The spelling of 42955542 in words is "forty-two million, nine hundred fifty-five thousand, five hundred forty-two".