403842542 has 8 divisors (see below), whose sum is σ = 606747456. Its totient is φ = 201593392.

The previous prime is 403842479. The next prime is 403842547. The reversal of 403842542 is 245248304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 403842499 and 403842508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403842547) 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 in 3 ways as a sum of consecutive naturals, for example, 162398 + ... + 164865.

It is an arithmetic number, because the mean of its divisors is an integer number (75843432).

Almost surely, 2^403842542 is an apocalyptic number.

403842542 is a deficient number, since it is larger than the sum of its proper divisors (202904914).

403842542 is a wasteful number, since it uses less digits than its factorization.

403842542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327882.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 403842542 is about 20095.8339463681. The cubic root of 403842542 is about 739.1581258626.

The spelling of 403842542 in words is "four hundred three million, eight hundred forty-two thousand, five hundred forty-two".