7438454420 has 24 divisors (see below), whose sum is σ = 15622500264. Its totient is φ = 2975049216.

The previous prime is 7438454393. The next prime is 7438454453. The reversal of 7438454420 is 244548347.

It can be written as a sum of positive squares in 4 ways, for example, as 219573124 + 7218881296 = 14818^2 + 84964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246392 + ... + 274928.

It is an arithmetic number, because the mean of its divisors is an integer number (650937511).

Almost surely, 2^7438454420 is an apocalyptic number.

It is an amenable number.

7438454420 is an abundant number, since it is smaller than the sum of its proper divisors (8184045844).

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

7438454420 is a wasteful number, since it uses less digits than its factorization.

7438454420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41579 (or 41577 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 41.

The square root of 7438454420 is about 86246.4748265110. The cubic root of 7438454420 is about 1952.0648231211.

The spelling of 7438454420 in words is "seven billion, four hundred thirty-eight million, four hundred fifty-four thousand, four hundred twenty".