42313040 has 80 divisors (see below), whose sum is σ = 122670720. Its totient is φ = 13186560.

The previous prime is 42313013. The next prime is 42313067. The reversal of 42313040 is 4031324.

It is an interprime number because it is at equal distance from previous prime (42313013) and next prime (42313067).

It is a tau number, because it is divible by the number of its divisors (80).

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, 2726 + ... + 9594.

It is an arithmetic number, because the mean of its divisors is an integer number (1533384).

Almost surely, 2^42313040 is an apocalyptic number.

42313040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42313040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61335360).

42313040 is an abundant number, since it is smaller than the sum of its proper divisors (80357680).

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

42313040 is a wasteful number, since it uses less digits than its factorization.

42313040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900 (or 6894 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42313040 is about 6504.8474232683. The cubic root of 42313040 is about 348.4641272726.

Adding to 42313040 its reverse (4031324), we get a palindrome (46344364).

The spelling of 42313040 in words is "forty-two million, three hundred thirteen thousand, forty".