42404310 has 80 divisors (see below), whose sum is σ = 122821776. Its totient is φ = 10435392.

The previous prime is 42404269. The next prime is 42404359. The reversal of 42404310 is 1340424.

It is a super-2 number, since 2×42404310² = 3596251013152200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8517 + ... + 12543.

Almost surely, 2^42404310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42404310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61410888).

42404310 is an abundant number, since it is smaller than the sum of its proper divisors (80417466).

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

42404310 is a wasteful number, since it uses less digits than its factorization.

42404310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059 (or 4050 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42404310 is about 6511.8591815241. The cubic root of 42404310 is about 348.7144951715.

Adding to 42404310 its reverse (1340424), we get a palindrome (43744734).

The spelling of 42404310 in words is "forty-two million, four hundred four thousand, three hundred ten".