4031021442 has 16 divisors (see below), whose sum is σ = 9213763392. Its totient is φ = 1151720400.

The previous prime is 4031021413. The next prime is 4031021461. The reversal of 4031021442 is 2441201304.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47988309 + ... + 47988392.

It is an arithmetic number, because the mean of its divisors is an integer number (575860212).

Almost surely, 2^4031021442 is an apocalyptic number.

4031021442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4031021442 is an abundant number, since it is smaller than the sum of its proper divisors (5182741950).

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

4031021442 is a wasteful number, since it uses less digits than its factorization.

4031021442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95976713.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4031021442 is about 63490.3255779965. The cubic root of 4031021442 is about 1591.4941115545.

Adding to 4031021442 its reverse (2441201304), we get a palindrome (6472222746).

The spelling of 4031021442 in words is "four billion, thirty-one million, twenty-one thousand, four hundred forty-two".