4012423240 has 32 divisors (see below), whose sum is σ = 10317660480. Its totient is φ = 1375687872.

The previous prime is 4012423237. The next prime is 4012423241. The reversal of 4012423240 is 423242104.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4012423241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7164762 + ... + 7165321.

It is an arithmetic number, because the mean of its divisors is an integer number (322426890).

Almost surely, 2^4012423240 is an apocalyptic number.

4012423240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4012423240 is an abundant number, since it is smaller than the sum of its proper divisors (6305237240).

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

4012423240 is a wasteful number, since it uses less digits than its factorization.

4012423240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14330101 (or 14330097 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4012423240 is about 63343.6913985915. The cubic root of 4012423240 is about 1589.0427422338.

Adding to 4012423240 its reverse (423242104), we get a palindrome (4435665344).

The spelling of 4012423240 in words is "four billion, twelve million, four hundred twenty-three thousand, two hundred forty".