42310988 has 6 divisors (see below), whose sum is σ = 74044236. Its totient is φ = 21155492.

The previous prime is 42310987. The next prime is 42310991. The reversal of 42310988 is 88901324.

It is a happy number.

It is a super-2 number, since 2×42310988² = 3580439411072288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42310981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5288870 + ... + 5288877.

It is an arithmetic number, because the mean of its divisors is an integer number (12340706).

Almost surely, 2^42310988 is an apocalyptic number.

It is an amenable number.

42310988 is a deficient number, since it is larger than the sum of its proper divisors (31733248).

42310988 is a wasteful number, since it uses less digits than its factorization.

42310988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10577751 (or 10577749 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 42310988 is about 6504.6896928293. The cubic root of 42310988 is about 348.4584941790.

It can be divided in two parts, 423 and 10988, that added together give a palindrome (11411).

The spelling of 42310988 in words is "forty-two million, three hundred ten thousand, nine hundred eighty-eight".