34431404520 has 64 divisors (see below), whose sum is σ = 104835942720. Its totient is φ = 9044665344.

The previous prime is 34431404471. The next prime is 34431404521. The reversal of 34431404520 is 2540413443.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (34431404521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2133217 + ... + 2149296.

It is an arithmetic number, because the mean of its divisors is an integer number (1638061605).

Almost surely, 2^34431404520 is an apocalyptic number.

34431404520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34431404520 is an abundant number, since it is smaller than the sum of its proper divisors (70404538200).

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

34431404520 is a wasteful number, since it uses less digits than its factorization.

34431404520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282594 (or 4282590 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 34431404520 its reverse (2540413443), we get a palindrome (36971817963).

The spelling of 34431404520 in words is "thirty-four billion, four hundred thirty-one million, four hundred four thousand, five hundred twenty".