445345542 has 24 divisors (see below), whose sum is σ = 990995616. Its totient is φ = 144436176.

The previous prime is 445345519. The next prime is 445345553. The reversal of 445345542 is 245543544.

It is a junction number, because it is equal to n+sod(n) for n = 445345497 and 445345506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333678 + ... + 335009.

It is an arithmetic number, because the mean of its divisors is an integer number (41291484).

Almost surely, 2^445345542 is an apocalyptic number.

445345542 is an abundant number, since it is smaller than the sum of its proper divisors (545650074).

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

445345542 is a wasteful number, since it uses less digits than its factorization.

445345542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668732 (or 668729 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

The square root of 445345542 is about 21103.2116513103. The cubic root of 445345542 is about 763.6582298083.

The spelling of 445345542 in words is "four hundred forty-five million, three hundred forty-five thousand, five hundred forty-two".