538297420 has 24 divisors (see below), whose sum is σ = 1169406000. Its totient is φ = 207893952.

The previous prime is 538297411. The next prime is 538297421. The reversal of 538297420 is 24792835.

It is a super-2 number, since 2×538297420² = 579528224757312800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (538297421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463470 + ... + 464629.

It is an arithmetic number, because the mean of its divisors is an integer number (48725250).

Almost surely, 2^538297420 is an apocalyptic number.

It is an amenable number.

538297420 is an abundant number, since it is smaller than the sum of its proper divisors (631108580).

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

538297420 is a wasteful number, since it uses less digits than its factorization.

538297420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928137 (or 928135 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 538297420 is about 23201.2374669973. The cubic root of 538297420 is about 813.4685481697.

The spelling of 538297420 in words is "five hundred thirty-eight million, two hundred ninety-seven thousand, four hundred twenty".