51404342 has 8 divisors (see below), whose sum is σ = 84116232. Its totient is φ = 23365600.

The previous prime is 51404321. The next prime is 51404351. The reversal of 51404342 is 24340415.

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

It is a congruent number.

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, 1168259 + ... + 1168302.

It is an arithmetic number, because the mean of its divisors is an integer number (10514529).

Almost surely, 2^51404342 is an apocalyptic number.

51404342 is a deficient number, since it is larger than the sum of its proper divisors (32711890).

51404342 is a wasteful number, since it uses less digits than its factorization.

51404342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336574.

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

The square root of 51404342 is about 7169.6821407926. The cubic root of 51404342 is about 371.8204465511.

Adding to 51404342 its reverse (24340415), we get a palindrome (75744757).

The spelling of 51404342 in words is "fifty-one million, four hundred four thousand, three hundred forty-two".