4240400 has 30 divisors (see below), whose sum is σ = 10188522. Its totient is φ = 1696000.

The previous prime is 4240399. The next prime is 4240417. The reversal of 4240400 is 40424.

It can be written as a sum of positive squares in 3 ways, for example, as 795664 + 3444736 = 892^2 + 1856^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4901 + ... + 5700.

Almost surely, 2^4240400 is an apocalyptic number.

4240400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4240400 is an abundant number, since it is smaller than the sum of its proper divisors (5948122).

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

4240400 is a wasteful number, since it uses less digits than its factorization.

4240400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10619 (or 10608 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4240400 is about 2059.2231544930. The cubic root of 4240400 is about 161.8585362623.

Adding to 4240400 its reverse (40424), we get a palindrome (4280824).

The spelling of 4240400 in words is "four million, two hundred forty thousand, four hundred".