51742404 has 36 divisors (see below), whose sum is σ = 149478784. Its totient is φ = 14783472.

The previous prime is 51742403. The next prime is 51742417. The reversal of 51742404 is 40424715.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (51742403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102412 + ... + 102915.

Almost surely, 2^51742404 is an apocalyptic number.

It is an amenable number.

51742404 is an abundant number, since it is smaller than the sum of its proper divisors (97736380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51742404 is a wasteful number, since it uses less digits than its factorization.

51742404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205344 (or 205339 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 51742404 is about 7193.2193070975. The cubic root of 51742404 is about 372.6337618499.

The spelling of 51742404 in words is "fifty-one million, seven hundred forty-two thousand, four hundred four".