1445688042 has 8 divisors (see below), whose sum is σ = 2891376096. Its totient is φ = 481896012.

The previous prime is 1445688029. The next prime is 1445688047. The reversal of 1445688042 is 2408865441.

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

1445688042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1445687985 and 1445688003.

It is not an unprimeable number, because it can be changed into a prime (1445688047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120473998 + ... + 120474009.

It is an arithmetic number, because the mean of its divisors is an integer number (361422012).

Almost surely, 2^1445688042 is an apocalyptic number.

1445688042 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.

1445688042 is a wasteful number, since it uses less digits than its factorization.

1445688042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240948012.

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 1445688042 is about 38022.2045915278. The cubic root of 1445688042 is about 1130.7281291489.

The spelling of 1445688042 in words is "one billion, four hundred forty-five million, six hundred eighty-eight thousand, forty-two".