4245440 has 28 divisors (see below), whose sum is σ = 10110216. Its totient is φ = 1698048.

The previous prime is 4245413. The next prime is 4245443. The reversal of 4245440 is 445424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6314 + ... + 6953.

Almost surely, 2^4245440 is an apocalyptic number.

4245440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4245440 is an abundant number, since it is smaller than the sum of its proper divisors (5864776).

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

4245440 is a wasteful number, since it uses less digits than its factorization.

4245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284 (or 13274 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4245440 is about 2060.4465535412. The cubic root of 4245440 is about 161.9226374507.

The spelling of 4245440 in words is "four million, two hundred forty-five thousand, four hundred forty".