431055420 has 96 divisors (see below), whose sum is σ = 1302981120. Its totient is φ = 106149120.

The previous prime is 431055409. The next prime is 431055431. The reversal of 431055420 is 24550134.

It is an interprime number because it is at equal distance from previous prime (431055409) and next prime (431055431).

It is a super-2 number, since 2×431055420² = 371617550222752800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34635 + ... + 45405.

It is an arithmetic number, because the mean of its divisors is an integer number (13572720).

Almost surely, 2^431055420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431055420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651490560).

431055420 is an abundant number, since it is smaller than the sum of its proper divisors (871925700).

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

431055420 is a wasteful number, since it uses less digits than its factorization.

431055420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10835 (or 10833 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 431055420 is about 20761.8741928565. The cubic root of 431055420 is about 755.4012574030.

The spelling of 431055420 in words is "four hundred thirty-one million, fifty-five thousand, four hundred twenty".