51442346 has 32 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 23946496.

The previous prime is 51442343. The next prime is 51442381. The reversal of 51442346 is 64324415.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (51442343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307955 + ... + 308121.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^51442346 is an apocalyptic number.

51442346 is a deficient number, since it is larger than the sum of its proper divisors (31294294).

51442346 is a wasteful number, since it uses less digits than its factorization.

51442346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358.

The product of its digits is 11520, while the sum is 29.

The square root of 51442346 is about 7172.3319778159. The cubic root of 51442346 is about 371.9120547875.

The spelling of 51442346 in words is "fifty-one million, four hundred forty-two thousand, three hundred forty-six".