10425440 has 48 divisors (see below), whose sum is σ = 25710048. Its totient is φ = 3987456.

The previous prime is 10425409. The next prime is 10425461. The reversal of 10425440 is 4452401.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2264 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (535626).

Almost surely, 2^10425440 is an apocalyptic number.

10425440 is a gapful number since it is divisible by the number (10) 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 10425440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12855024).

10425440 is an abundant number, since it is smaller than the sum of its proper divisors (15284608).

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

10425440 is a wasteful number, since it uses less digits than its factorization.

10425440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 10425440 is about 3228.8449947311. The cubic root of 10425440 is about 218.4564126794.

Adding to 10425440 its reverse (4452401), we get a palindrome (14877841).

The spelling of 10425440 in words is "ten million, four hundred twenty-five thousand, four hundred forty".