445991148 has 36 divisors (see below), whose sum is σ = 1146479880. Its totient is φ = 146143296.

The previous prime is 445991129. The next prime is 445991167. The reversal of 445991148 is 841199544.

It is a happy number.

445991148 is a `hidden beast` number, since 4 + 4 + 599 + 11 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (445991129) and next prime (445991167).

It is a tau number, because it is divible by the number of its divisors (36).

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, 102865 + ... + 107112.

Almost surely, 2^445991148 is an apocalyptic number.

It is an amenable number.

445991148 is an abundant number, since it is smaller than the sum of its proper divisors (700488732).

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

445991148 is a wasteful number, since it uses less digits than its factorization.

445991148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210046 (or 210041 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 445991148 is about 21118.5025037288. The cubic root of 445991148 is about 764.0270702103.

The spelling of 445991148 in words is "four hundred forty-five million, nine hundred ninety-one thousand, one hundred forty-eight".