4202440 has 32 divisors (see below), whose sum is σ = 10316160. Its totient is φ = 1528000.

The previous prime is 4202413. The next prime is 4202447. The reversal of 4202440 is 442024.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4202447) 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, 4336 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (322380).

Almost surely, 2^4202440 is an apocalyptic number.

4202440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4202440 is an abundant number, since it is smaller than the sum of its proper divisors (6113720).

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

4202440 is a wasteful number, since it uses less digits than its factorization.

4202440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573 (or 9569 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4202440 is about 2049.9853658014. The cubic root of 4202440 is about 161.3741027277.

Adding to 4202440 its reverse (442024), we get a palindrome (4644464).

The spelling of 4202440 in words is "four million, two hundred two thousand, four hundred forty".