542370249 has 20 divisors (see below), whose sum is σ = 813008196. Its totient is φ = 360330336.

The previous prime is 542370247. The next prime is 542370277. The reversal of 542370249 is 942073245.

542370249 is a `hidden beast` number, since 5 + 42 + 370 + 249 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 322382025 + 219988224 = 17955^2 + 14832^2 .

It is not a de Polignac number, because 542370249 - 2¹ = 542370247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542370247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12307 + ... + 35159.

Almost surely, 2^542370249 is an apocalyptic number.

It is an amenable number.

542370249 is a deficient number, since it is larger than the sum of its proper divisors (270637947).

542370249 is a wasteful number, since it uses less digits than its factorization.

542370249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23158 (or 23149 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 542370249 is about 23288.8438742674. The cubic root of 542370249 is about 815.5149988789.

The spelling of 542370249 in words is "five hundred forty-two million, three hundred seventy thousand, two hundred forty-nine".