30431034 has 48 divisors (see below), whose sum is σ = 69025320. Its totient is φ = 9676800.

The previous prime is 30431021. The next prime is 30431059. The reversal of 30431034 is 43013403.

It can be written as a sum of positive squares in 4 ways, for example, as 28998225 + 1432809 = 5385^2 + 1197^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30430998 and 30431016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50334 + ... + 50934.

Almost surely, 2^30431034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30431034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34512660).

30431034 is an abundant number, since it is smaller than the sum of its proper divisors (38594286).

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

30431034 is a wasteful number, since it uses less digits than its factorization.

30431034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30431034 is about 5516.4330866965. The cubic root of 30431034 is about 312.2043163694.

Adding to 30431034 its reverse (43013403), we get a palindrome (73444437).

The spelling of 30431034 in words is "thirty million, four hundred thirty-one thousand, thirty-four".