845438602 has 4 divisors (see below), whose sum is σ = 1268157906. Its totient is φ = 422719300.

The previous prime is 845438591. The next prime is 845438621. The reversal of 845438602 is 206834548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 822599761 + 22838841 = 28681^2 + 4779^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211359649 + ... + 211359652.

Almost surely, 2^845438602 is an apocalyptic number.

845438602 is a deficient number, since it is larger than the sum of its proper divisors (422719304).

845438602 is a wasteful number, since it uses less digits than its factorization.

845438602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422719303.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 845438602 is about 29076.4269125352. The cubic root of 845438602 is about 945.5707392782.

The spelling of 845438602 in words is "eight hundred forty-five million, four hundred thirty-eight thousand, six hundred two".