445405142 has 32 divisors (see below), whose sum is σ = 850651200. Its totient is φ = 170126208.

The previous prime is 445405139. The next prime is 445405159. The reversal of 445405142 is 241504544.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36917 + ... + 47472.

It is an arithmetic number, because the mean of its divisors is an integer number (26582850).

Almost surely, 2^445405142 is an apocalyptic number.

445405142 is a deficient number, since it is larger than the sum of its proper divisors (405246058).

445405142 is a wasteful number, since it uses less digits than its factorization.

445405142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84440.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 445405142 is about 21104.6237114050. The cubic root of 445405142 is about 763.6922947429.

Adding to 445405142 its reverse (241504544), we get a palindrome (686909686).

The spelling of 445405142 in words is "four hundred forty-five million, four hundred five thousand, one hundred forty-two".