4425023640 has 32 divisors (see below), whose sum is σ = 13275071280. Its totient is φ = 1180006272.

The previous prime is 4425023593. The next prime is 4425023651. The reversal of 4425023640 is 463205244.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4425023598 and 4425023607.

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, 18437479 + ... + 18437718.

Almost surely, 2^4425023640 is an apocalyptic number.

4425023640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4425023640 is an abundant number, since it is smaller than the sum of its proper divisors (8850047640).

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

4425023640 is a wasteful number, since it uses less digits than its factorization.

4425023640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36875211 (or 36875207 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 4425023640 is about 66520.8511671341. The cubic root of 4425023640 is about 1641.7430951159.

Adding to 4425023640 its reverse (463205244), we get a palindrome (4888228884).

The spelling of 4425023640 in words is "four billion, four hundred twenty-five million, twenty-three thousand, six hundred forty".