431640030 has 32 divisors (see below), whose sum is σ = 1096874784. Its totient is φ = 108333056.

The previous prime is 431640029. The next prime is 431640067. The reversal of 431640030 is 30046134.

It is a junction number, because it is equal to n+sod(n) for n = 431639979 and 431640006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422667 + ... + 423686.

It is an arithmetic number, because the mean of its divisors is an integer number (34277337).

Almost surely, 2^431640030 is an apocalyptic number.

431640030 is an abundant number, since it is smaller than the sum of its proper divisors (665234754).

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

431640030 is a wasteful number, since it uses less digits than its factorization.

431640030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846380.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 431640030 is about 20775.9483538057. The cubic root of 431640030 is about 755.7426022472.

Adding to 431640030 its reverse (30046134), we get a palindrome (461686164).

The spelling of 431640030 in words is "four hundred thirty-one million, six hundred forty thousand, thirty".