5421223240 has 16 divisors (see below), whose sum is σ = 12197752380. Its totient is φ = 2168489280.

The previous prime is 5421223207. The next prime is 5421223253. The reversal of 5421223240 is 423221245.

It can be written as a sum of positive squares in 2 ways, for example, as 4991987716 + 429235524 = 70654^2 + 20718^2 .

It is a super-2 number, since 2×5421223240² = 58779322835832195200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67765251 + ... + 67765330.

Almost surely, 2^5421223240 is an apocalyptic number.

It is an amenable number.

5421223240 is an abundant number, since it is smaller than the sum of its proper divisors (6776529140).

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

5421223240 is a wasteful number, since it uses less digits than its factorization.

5421223240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135530592 (or 135530588 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 5421223240 is about 73628.9565320601. The cubic root of 5421223240 is about 1756.7060506197.

Adding to 5421223240 its reverse (423221245), we get a palindrome (5844444485).

The spelling of 5421223240 in words is "five billion, four hundred twenty-one million, two hundred twenty-three thousand, two hundred forty".