51400374 has 8 divisors (see below), whose sum is σ = 102800760. Its totient is φ = 17133456.

The previous prime is 51400361. The next prime is 51400411. The reversal of 51400374 is 47300415.

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

51400374 is an admirable number.

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, 4283359 + ... + 4283370.

It is an arithmetic number, because the mean of its divisors is an integer number (12850095).

Almost surely, 2^51400374 is an apocalyptic number.

51400374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51400374 is a wasteful number, since it uses less digits than its factorization.

51400374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8566734.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 51400374 is about 7169.4054146770. The cubic root of 51400374 is about 371.8108791265.

Adding to 51400374 its reverse (47300415), we get a palindrome (98700789).

The spelling of 51400374 in words is "fifty-one million, four hundred thousand, three hundred seventy-four".