431359641 has 32 divisors (see below), whose sum is σ = 701952000. Its totient is φ = 260585424.

The previous prime is 431359639. The next prime is 431359661. The reversal of 431359641 is 146953134.

431359641 is a `hidden beast` number, since 4 + 3 + 1 + 3 + 5 + 9 + 641 = 666.

It is not a de Polignac number, because 431359641 - 2¹ = 431359639 is a prime.

It is a super-2 number, since 2×431359641² = 372142279767297762, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431359596 and 431359605.

It is not an unprimeable number, because it can be changed into a prime (431359661) 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, 6481 + ... + 30078.

It is an arithmetic number, because the mean of its divisors is an integer number (21936000).

Almost surely, 2^431359641 is an apocalyptic number.

It is an amenable number.

431359641 is a deficient number, since it is larger than the sum of its proper divisors (270592359).

431359641 is a wasteful number, since it uses less digits than its factorization.

431359641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36610 (or 36604 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 431359641 is about 20769.1993345916. The cubic root of 431359641 is about 755.5789258831.

The spelling of 431359641 in words is "four hundred thirty-one million, three hundred fifty-nine thousand, six hundred forty-one".