5402434521 has 16 divisors (see below), whose sum is σ = 8271671040. Its totient is φ = 3101875920.

The previous prime is 5402434519. The next prime is 5402434547. The reversal of 5402434521 is 1254342045.

It is not a de Polignac number, because 5402434521 - 2¹ = 5402434519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5402434571) 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, 4307535 + ... + 4308788.

It is an arithmetic number, because the mean of its divisors is an integer number (516979440).

Almost surely, 2^5402434521 is an apocalyptic number.

It is an amenable number.

5402434521 is a deficient number, since it is larger than the sum of its proper divisors (2869236519).

5402434521 is a wasteful number, since it uses less digits than its factorization.

5402434521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616356.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 5402434521 is about 73501.2552341795. The cubic root of 5402434521 is about 1754.6742545233.

Adding to 5402434521 its reverse (1254342045), we get a palindrome (6656776566).

The spelling of 5402434521 in words is "five billion, four hundred two million, four hundred thirty-four thousand, five hundred twenty-one".