50405442 has 64 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 14480640.

The previous prime is 50405437. The next prime is 50405447. The reversal of 50405442 is 24450405.

It is an interprime number because it is at equal distance from previous prime (50405437) and next prime (50405447).

It is not an unprimeable number, because it can be changed into a prime (50405447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59659 + ... + 60497.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2^50405442 is an apocalyptic number.

50405442 is an abundant number, since it is smaller than the sum of its proper divisors (65716158).

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

50405442 is a wasteful number, since it uses less digits than its factorization.

50405442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 50405442 is about 7099.6790068284. The cubic root of 50405442 is about 369.3962444657.

Adding to 50405442 its reverse (24450405), we get a palindrome (74855847).

The spelling of 50405442 in words is "fifty million, four hundred five thousand, four hundred forty-two".