30431034040 has 64 divisors (see below), whose sum is σ = 75717646560. Its totient is φ = 10914232320.

The previous prime is 30431034037. The next prime is 30431034041. The reversal of 30431034040 is 4043013403.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431034041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441589 + ... + 505828.

Almost surely, 2^30431034040 is an apocalyptic number.

It is an amenable number.

30431034040 is an abundant number, since it is smaller than the sum of its proper divisors (45286612520).

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

30431034040 is a wasteful number, since it uses less digits than its factorization.

30431034040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947512 (or 947508 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30431034040 its reverse (4043013403), we get a palindrome (34474047443).

The spelling of 30431034040 in words is "thirty billion, four hundred thirty-one million, thirty-four thousand, forty".