5123452440 has 64 divisors (see below), whose sum is σ = 15580936800. Its totient is φ = 1347535872.

The previous prime is 5123452421. The next prime is 5123452483. The reversal of 5123452440 is 442543215.

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 = 5123452398 and 5123452407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283675 + ... + 301194.

Almost surely, 2^5123452440 is an apocalyptic number.

It is an amenable number.

5123452440 is an abundant number, since it is smaller than the sum of its proper divisors (10457484360).

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

5123452440 is a wasteful number, since it uses less digits than its factorization.

5123452440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584956 (or 584952 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 5123452440 is about 71578.2958724221. The cubic root of 5123452440 is about 1723.9350637593.

Adding to 5123452440 its reverse (442543215), we get a palindrome (5565995655).

The spelling of 5123452440 in words is "five billion, one hundred twenty-three million, four hundred fifty-two thousand, four hundred forty".