1445573642 has 16 divisors (see below), whose sum is σ = 2247557760. Its totient is φ = 696847008.

The previous prime is 1445573629. The next prime is 1445573651. The reversal of 1445573642 is 2463755441.

It is a self number, because there is not a number n which added to its sum of digits gives 1445573642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108467 + ... + 121062.

It is an arithmetic number, because the mean of its divisors is an integer number (140472360).

Almost surely, 2^1445573642 is an apocalyptic number.

1445573642 is a deficient number, since it is larger than the sum of its proper divisors (801984118).

1445573642 is a wasteful number, since it uses less digits than its factorization.

1445573642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229645.

The product of its digits is 403200, while the sum is 41.

The square root of 1445573642 is about 38020.7001776664. The cubic root of 1445573642 is about 1130.6983028179.

The spelling of 1445573642 in words is "one billion, four hundred forty-five million, five hundred seventy-three thousand, six hundred forty-two".