31442857430 has 8 divisors (see below), whose sum is σ = 56597143392. Its totient is φ = 12577142968.

The previous prime is 31442857339. The next prime is 31442857451. The reversal of 31442857430 is 3475824413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572142862 + ... + 1572142881.

It is an arithmetic number, because the mean of its divisors is an integer number (7074642924).

Almost surely, 2^31442857430 is an apocalyptic number.

31442857430 is a deficient number, since it is larger than the sum of its proper divisors (25154285962).

31442857430 is a wasteful number, since it uses less digits than its factorization.

31442857430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144285750.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 31442857430 in words is "thirty-one billion, four hundred forty-two million, eight hundred fifty-seven thousand, four hundred thirty".