4445751492 has 144 divisors (see below), whose sum is σ = 14058600192. Its totient is φ = 1153232640.

The previous prime is 4445751473. The next prime is 4445751521. The reversal of 4445751492 is 2941575444.

4445751492 is a `hidden beast` number, since 4 + 4 + 45 + 7 + 514 + 92 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188713 + ... + 210959.

It is an arithmetic number, because the mean of its divisors is an integer number (97629168).

Almost surely, 2^4445751492 is an apocalyptic number.

4445751492 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4445751492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7029300096).

4445751492 is an abundant number, since it is smaller than the sum of its proper divisors (9612848700).

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

4445751492 is a wasteful number, since it uses less digits than its factorization.

4445751492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338 (or 22333 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 4445751492 is about 66676.4688027193. The cubic root of 4445751492 is about 1644.3025399132.

The spelling of 4445751492 in words is "four billion, four hundred forty-five million, seven hundred fifty-one thousand, four hundred ninety-two".