538400434 has 16 divisors (see below), whose sum is σ = 948790080. Its totient is φ = 225902160.

The previous prime is 538400419. The next prime is 538400453. The reversal of 538400434 is 434004835.

It is a junction number, because it is equal to n+sod(n) for n = 538400396 and 538400405.

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 7 ways as a sum of consecutive naturals, for example, 940974 + ... + 941545.

It is an arithmetic number, because the mean of its divisors is an integer number (59299380).

Almost surely, 2^538400434 is an apocalyptic number.

538400434 is a deficient number, since it is larger than the sum of its proper divisors (410389646).

538400434 is a wasteful number, since it uses less digits than its factorization.

538400434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882545.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 538400434 is about 23203.4573716936. The cubic root of 538400434 is about 813.5204360300.

The spelling of 538400434 in words is "five hundred thirty-eight million, four hundred thousand, four hundred thirty-four".