431042636 has 6 divisors (see below), whose sum is σ = 754324620. Its totient is φ = 215521316.

The previous prime is 431042627. The next prime is 431042639. The reversal of 431042636 is 636240134.

It is a junction number, because it is equal to n+sod(n) for n = 431042599 and 431042608.

It is not an unprimeable number, because it can be changed into a prime (431042639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53880326 + ... + 53880333.

It is an arithmetic number, because the mean of its divisors is an integer number (125720770).

Almost surely, 2^431042636 is an apocalyptic number.

It is an amenable number.

431042636 is a deficient number, since it is larger than the sum of its proper divisors (323281984).

431042636 is a wasteful number, since it uses less digits than its factorization.

431042636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107760663 (or 107760661 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 431042636 is about 20761.5663185608. The cubic root of 431042636 is about 755.3937895735.

The spelling of 431042636 in words is "four hundred thirty-one million, forty-two thousand, six hundred thirty-six".