542404013 has 4 divisors (see below), whose sum is σ = 542568288. Its totient is φ = 542239740.

The previous prime is 542404007. The next prime is 542404019. The reversal of 542404013 is 310404245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310404245 = 5 ⋅62080849.

It is an interprime number because it is at equal distance from previous prime (542404007) and next prime (542404019).

It is a cyclic number.

It is not a de Polignac number, because 542404013 - 2¹² = 542399917 is a prime.

It is a super-2 number, since 2×542404013² = 588404226637008338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542404013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542404019) 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, 77081 + ... + 83822.

It is an arithmetic number, because the mean of its divisors is an integer number (135642072).

Almost surely, 2^542404013 is an apocalyptic number.

It is an amenable number.

542404013 is a deficient number, since it is larger than the sum of its proper divisors (164275).

542404013 is a wasteful number, since it uses less digits than its factorization.

542404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164274.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 542404013 is about 23289.5687594253. The cubic root of 542404013 is about 815.5319211918.

Adding to 542404013 its reverse (310404245), we get a palindrome (852808258).

The spelling of 542404013 in words is "five hundred forty-two million, four hundred four thousand, thirteen".