42354420 has 96 divisors (see below), whose sum is σ = 127370880. Its totient is φ = 10483200.

The previous prime is 42354419. The next prime is 42354421. The reversal of 42354420 is 2445324.

It is an interprime number because it is at equal distance from previous prime (42354419) and next prime (42354421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42354421) 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, 60070 + ... + 60770.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^42354420 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 42354420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63685440).

42354420 is an abundant number, since it is smaller than the sum of its proper divisors (85016460).

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

42354420 is a wasteful number, since it uses less digits than its factorization.

42354420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42354420 is about 6508.0273508952. The cubic root of 42354420 is about 348.5776836581.

Adding to 42354420 its reverse (2445324), we get a palindrome (44799744).

The spelling of 42354420 in words is "forty-two million, three hundred fifty-four thousand, four hundred twenty".