542404385 has 16 divisors (see below), whose sum is σ = 667441296. Its totient is φ = 422992128.

The previous prime is 542404361. The next prime is 542404403. The reversal of 542404385 is 583404245.

It can be written as a sum of positive squares in 8 ways, for example, as 399424 + 542004961 = 632^2 + 23281^2 .

It is a cyclic number.

It is not a de Polignac number, because 542404385 - 2²⁴ = 525627169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35087 + ... + 48123.

It is an arithmetic number, because the mean of its divisors is an integer number (41715081).

Almost surely, 2^542404385 is an apocalyptic number.

It is an amenable number.

542404385 is a deficient number, since it is larger than the sum of its proper divisors (125036911).

542404385 is a wasteful number, since it uses less digits than its factorization.

542404385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13252.

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 542404385 is about 23289.5767458320. The cubic root of 542404385 is about 815.5321076320.

The spelling of 542404385 in words is "five hundred forty-two million, four hundred four thousand, three hundred eighty-five".