4378542 has 48 divisors (see below), whose sum is σ = 10415952. Its totient is φ = 1223040.

The previous prime is 4378541. The next prime is 4378553. The reversal of 4378542 is 2458734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15442 + ... + 15722.

It is an arithmetic number, because the mean of its divisors is an integer number (216999).

Almost surely, 2^4378542 is an apocalyptic number.

4378542 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 4378542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5207976).

4378542 is an abundant number, since it is smaller than the sum of its proper divisors (6037410).

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

4378542 is a wasteful number, since it uses less digits than its factorization.

4378542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 346 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 4378542 is about 2092.4965949793. The cubic root of 4378542 is about 163.5974411916.

The spelling of 4378542 in words is "four million, three hundred seventy-eight thousand, five hundred forty-two".