549457938 has 16 divisors (see below), whose sum is σ = 1221017760. Its totient is φ = 183152628.

The previous prime is 549457921. The next prime is 549457957. The reversal of 549457938 is 839754945.

549457938 is a `hidden beast` number, since 549 + 4 + 5 + 7 + 93 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 10175147 = 549457938 / (5 + 4 + 9 + 4 + 5 + 7 + 9 + 3 + 8).

It is a Curzon 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, 5087520 + ... + 5087627.

It is an arithmetic number, because the mean of its divisors is an integer number (76313610).

Almost surely, 2^549457938 is an apocalyptic number.

549457938 is an abundant number, since it is smaller than the sum of its proper divisors (671559822).

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

549457938 is a wasteful number, since it uses less digits than its factorization.

549457938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10175158 (or 10175152 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 549457938 is about 23440.5191495410. The cubic root of 549457938 is about 819.0520167153.

The spelling of 549457938 in words is "five hundred forty-nine million, four hundred fifty-seven thousand, nine hundred thirty-eight".