542345407 has 4 divisors (see below), whose sum is σ = 574248096. Its totient is φ = 510442720.

The previous prime is 542345399. The next prime is 542345411. The reversal of 542345407 is 704543245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542345407 - 2³ = 542345399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542345437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15951319 + ... + 15951352.

It is an arithmetic number, because the mean of its divisors is an integer number (143562024).

Almost surely, 2^542345407 is an apocalyptic number.

542345407 is a deficient number, since it is larger than the sum of its proper divisors (31902689).

542345407 is a wasteful number, since it uses less digits than its factorization.

542345407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31902688.

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 542345407 is about 23288.3105226635. The cubic root of 542345407 is about 815.5025477702.

The spelling of 542345407 in words is "five hundred forty-two million, three hundred forty-five thousand, four hundred seven".