503400366340 has 24 divisors (see below), whose sum is σ = 1057196756952. Its totient is φ = 201349482240.

The previous prime is 503400366331. The next prime is 503400366421. The reversal of 503400366340 is 43663004305.

It can be written as a sum of positive squares in 4 ways, for example, as 65794302016 + 437606064324 = 256504^2 + 661518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 503400366296 and 503400366305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273801 + ... + 1040080.

It is an arithmetic number, because the mean of its divisors is an integer number (44049864873).

Almost surely, 2^503400366340 is an apocalyptic number.

It is an amenable number.

503400366340 is an abundant number, since it is smaller than the sum of its proper divisors (553796390612).

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

503400366340 is a wasteful number, since it uses less digits than its factorization.

503400366340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333047 (or 1333045 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 34.

The spelling of 503400366340 in words is "five hundred three billion, four hundred million, three hundred sixty-six thousand, three hundred forty".