542437946 has 4 divisors (see below), whose sum is σ = 813656922. Its totient is φ = 271218972.

The previous prime is 542437943. The next prime is 542437949. The reversal of 542437946 is 649734245.

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

It is an interprime number because it is at equal distance from previous prime (542437943) and next prime (542437949).

It can be written as a sum of positive squares in only one way, i.e., 530611225 + 11826721 = 23035^2 + 3439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 542437897 and 542437906.

It is not an unprimeable number, because it can be changed into a prime (542437943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135609485 + ... + 135609488.

Almost surely, 2^542437946 is an apocalyptic number.

542437946 is a deficient number, since it is larger than the sum of its proper divisors (271218976).

542437946 is a wasteful number, since it uses less digits than its factorization.

542437946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271218975.

The product of its digits is 725760, while the sum is 44.

The square root of 542437946 is about 23290.2972501426. The cubic root of 542437946 is about 815.5489274989.

The spelling of 542437946 in words is "five hundred forty-two million, four hundred thirty-seven thousand, nine hundred forty-six".