405313420 has 12 divisors (see below), whose sum is σ = 851158224. Its totient is φ = 162125360.

The previous prime is 405313417. The next prime is 405313423. The reversal of 405313420 is 24313504.

It is an interprime number because it is at equal distance from previous prime (405313417) and next prime (405313423).

It is a junction number, because it is equal to n+sod(n) for n = 405313391 and 405313400.

It is not an unprimeable number, because it can be changed into a prime (405313423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10132816 + ... + 10132855.

It is an arithmetic number, because the mean of its divisors is an integer number (70929852).

Almost surely, 2^405313420 is an apocalyptic number.

It is an amenable number.

405313420 is an abundant number, since it is smaller than the sum of its proper divisors (445844804).

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

405313420 is a wasteful number, since it uses less digits than its factorization.

405313420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20265680 (or 20265678 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 405313420 is about 20132.3972740456. The cubic root of 405313420 is about 740.0544274552.

Adding to 405313420 its reverse (24313504), we get a palindrome (429626924).

The spelling of 405313420 in words is "four hundred five million, three hundred thirteen thousand, four hundred twenty".