403252420 has 24 divisors (see below), whose sum is σ = 847758744. Its totient is φ = 161124096.

The previous prime is 403252403. The next prime is 403252441. The reversal of 403252420 is 24252304.

It can be written as a sum of positive squares in 4 ways, for example, as 367236 + 402885184 = 606^2 + 20072^2 .

It is a super-2 number, since 2×403252420² = 325225028471712800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 403252391 and 403252400.

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, 8482 + ... + 29638.

It is an arithmetic number, because the mean of its divisors is an integer number (35323281).

Almost surely, 2^403252420 is an apocalyptic number.

It is an amenable number.

403252420 is an abundant number, since it is smaller than the sum of its proper divisors (444506324).

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

403252420 is a wasteful number, since it uses less digits than its factorization.

403252420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22119 (or 22117 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 403252420 is about 20081.1458836392. The cubic root of 403252420 is about 738.7979144238.

The spelling of 403252420 in words is "four hundred three million, two hundred fifty-two thousand, four hundred twenty".