403136242 has 8 divisors (see below), whose sum is σ = 604789632. Its totient is φ = 201539700.

The previous prime is 403136233. The next prime is 403136257. The reversal of 403136242 is 242631304.

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

It is a super-2 number, since 2×403136242² = 325037659227765128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19767 + ... + 34597.

It is an arithmetic number, because the mean of its divisors is an integer number (75598704).

Almost surely, 2^403136242 is an apocalyptic number.

403136242 is a deficient number, since it is larger than the sum of its proper divisors (201653390).

403136242 is a wasteful number, since it uses less digits than its factorization.

403136242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28424.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 403136242 is about 20078.2529618490. The cubic root of 403136242 is about 738.7269577856.

Adding to 403136242 its reverse (242631304), we get a palindrome (645767546).

The spelling of 403136242 in words is "four hundred three million, one hundred thirty-six thousand, two hundred forty-two".