4212440 has 32 divisors (see below), whose sum is σ = 9661680. Its totient is φ = 1652352.

The previous prime is 4212437. The next prime is 4212443. The reversal of 4212440 is 442124.

It is an interprime number because it is at equal distance from previous prime (4212437) and next prime (4212443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212443) 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, 1127 + ... + 3113.

Almost surely, 2^4212440 is an apocalyptic number.

4212440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4212440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4830840).

4212440 is an abundant number, since it is smaller than the sum of its proper divisors (5449240).

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

4212440 is a wasteful number, since it uses less digits than its factorization.

4212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4212440 is about 2052.4229583592. The cubic root of 4212440 is about 161.5020016558.

Adding to 4212440 its reverse (442124), we get a palindrome (4654564).

The spelling of 4212440 in words is "four million, two hundred twelve thousand, four hundred forty".