402231551242 has 8 divisors (see below), whose sum is σ = 604576141632. Its totient is φ = 200706170700.

The previous prime is 402231551237. The next prime is 402231551287. The reversal of 402231551242 is 242155132204.

It is a happy number.

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

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, 204801234 + ... + 204803197.

It is an arithmetic number, because the mean of its divisors is an integer number (75572017704).

Almost surely, 2^402231551242 is an apocalyptic number.

402231551242 is a deficient number, since it is larger than the sum of its proper divisors (202344590390).

402231551242 is a wasteful number, since it uses less digits than its factorization.

402231551242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409604924.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 402231551242 its reverse (242155132204), we get a palindrome (644386683446).

The spelling of 402231551242 in words is "four hundred two billion, two hundred thirty-one million, five hundred fifty-one thousand, two hundred forty-two".