431421041 has 4 divisors (see below), whose sum is σ = 431508132. Its totient is φ = 431333952.

The previous prime is 431420993. The next prime is 431421047. The reversal of 431421041 is 140124134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90649441 + 340771600 = 9521^2 + 18460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431421041 is a prime.

It is a super-2 number, since 2×431421041² = 372248229235047362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431421047) 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, 35636 + ... + 46181.

It is an arithmetic number, because the mean of its divisors is an integer number (107877033).

Almost surely, 2^431421041 is an apocalyptic number.

It is an amenable number.

431421041 is a deficient number, since it is larger than the sum of its proper divisors (87091).

431421041 is an equidigital number, since it uses as much as digits as its factorization.

431421041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87090.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 431421041 is about 20770.6774323805. The cubic root of 431421041 is about 755.6147740406.

Adding to 431421041 its reverse (140124134), we get a palindrome (571545175).

The spelling of 431421041 in words is "four hundred thirty-one million, four hundred twenty-one thousand, forty-one".