2434440 has 32 divisors (see below), whose sum is σ = 7303680. Its totient is φ = 649152.

The previous prime is 2434433. The next prime is 2434441. The reversal of 2434440 is 444342.

It is a super-2 number, since 2×2434440² = 11852996227200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2434441) 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, 10024 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (228240).

2^2434440 is an apocalyptic number.

2434440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2434440 is an abundant number, since it is smaller than the sum of its proper divisors (4869240).

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

2434440 is a wasteful number, since it uses less digits than its factorization.

2434440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20301 (or 20297 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2434440 is about 1560.2692075408. The cubic root of 2434440 is about 134.5239750336.

Adding to 2434440 its reverse (444342), we get a palindrome (2878782).

The spelling of 2434440 in words is "two million, four hundred thirty-four thousand, four hundred forty".