52403430 has 64 divisors (see below), whose sum is σ = 132295680. Its totient is φ = 13259136.

The previous prime is 52403389. The next prime is 52403437. The reversal of 52403430 is 3430425.

It is a happy number.

It is a super-2 number, since 2×52403430² = 5492238951529800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52403397 and 52403406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52403437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119151 + ... + 119589.

It is an arithmetic number, because the mean of its divisors is an integer number (2067120).

Almost surely, 2^52403430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52403430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66147840).

52403430 is an abundant number, since it is smaller than the sum of its proper divisors (79892250).

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

52403430 is a wasteful number, since it uses less digits than its factorization.

52403430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 52403430 is about 7239.0213426954. The cubic root of 52403430 is about 374.2138910164.

Adding to 52403430 its reverse (3430425), we get a palindrome (55833855).

The spelling of 52403430 in words is "fifty-two million, four hundred three thousand, four hundred thirty".