5402435021 has 4 divisors (see below), whose sum is σ = 5441301600. Its totient is φ = 5363568444.

The previous prime is 5402434993. The next prime is 5402435039. The reversal of 5402435021 is 1205342045.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5402435021 - 2⁶ = 5402434957 is a prime.

It is a super-2 number, since 2×5402435021² = 58372608312254540882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5402455021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19433081 + ... + 19433358.

It is an arithmetic number, because the mean of its divisors is an integer number (1360325400).

Almost surely, 2^5402435021 is an apocalyptic number.

It is an amenable number.

5402435021 is a deficient number, since it is larger than the sum of its proper divisors (38866579).

5402435021 is a wasteful number, since it uses less digits than its factorization.

5402435021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38866578.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5402435021 is about 73501.2586354819. The cubic root of 5402435021 is about 1754.6743086556.

Adding to 5402435021 its reverse (1205342045), we get a palindrome (6607777066).

The spelling of 5402435021 in words is "five billion, four hundred two million, four hundred thirty-five thousand, twenty-one".