42421752 has 64 divisors (see below), whose sum is σ = 122976000. Its totient is φ = 13524192.

The previous prime is 42421741. The next prime is 42421763. The reversal of 42421752 is 25712424.

It is an interprime number because it is at equal distance from previous prime (42421741) and next prime (42421763).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699 + ... + 9237.

It is an arithmetic number, because the mean of its divisors is an integer number (1921500).

Almost surely, 2^42421752 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 42421752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61488000).

42421752 is an abundant number, since it is smaller than the sum of its proper divisors (80554248).

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

42421752 is a wasteful number, since it uses less digits than its factorization.

42421752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577 (or 8567 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 42421752 is about 6513.1982926977. The cubic root of 42421752 is about 348.7623004102.

The spelling of 42421752 in words is "forty-two million, four hundred twenty-one thousand, seven hundred fifty-two".