4200442040 has 16 divisors (see below), whose sum is σ = 9450994680. Its totient is φ = 1680176800.

The previous prime is 4200442039. The next prime is 4200442067. The reversal of 4200442040 is 402440024.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52505486 + ... + 52505565.

Almost surely, 2^4200442040 is an apocalyptic number.

4200442040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4200442040 is an abundant number, since it is smaller than the sum of its proper divisors (5250552640).

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

4200442040 is a wasteful number, since it uses less digits than its factorization.

4200442040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105011062 (or 105011058 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4200442040 is about 64810.8173069897. The cubic root of 4200442040 is about 1613.4852472134.

Adding to 4200442040 its reverse (402440024), we get a palindrome (4602882064).

The spelling of 4200442040 in words is "four billion, two hundred million, four hundred forty-two thousand, forty".