845149930 has 32 divisors (see below), whose sum is σ = 1569544704. Its totient is φ = 327416256.

The previous prime is 845149909. The next prime is 845149957. The reversal of 845149930 is 39941548.

It is a happy 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, 77389 + ... + 87631.

It is an arithmetic number, because the mean of its divisors is an integer number (49048272).

Almost surely, 2^845149930 is an apocalyptic number.

845149930 is a deficient number, since it is larger than the sum of its proper divisors (724394774).

845149930 is a wasteful number, since it uses less digits than its factorization.

845149930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 845149930 is about 29071.4624675127. The cubic root of 845149930 is about 945.4631064398.

The spelling of 845149930 in words is "eight hundred forty-five million, one hundred forty-nine thousand, nine hundred thirty".