1445254992 has 120 divisors (see below), whose sum is σ = 4128860736. Its totient is φ = 471840768.

The previous prime is 1445254981. The next prime is 1445255027. The reversal of 1445254992 is 2994525441.

1445254992 is a `hidden beast` number, since 14 + 4 + 5 + 2 + 549 + 92 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1494093 + ... + 1495059.

Almost surely, 2^1445254992 is an apocalyptic number.

1445254992 is a gapful number since it is divisible by the number (12) 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 1445254992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2064430368).

1445254992 is an abundant number, since it is smaller than the sum of its proper divisors (2683605744).

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

1445254992 is a wasteful number, since it uses less digits than its factorization.

1445254992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1176 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 1445254992 is about 38016.5094662832. The cubic root of 1445254992 is about 1130.6152161962.

It can be divided in two parts, 144525499 and 2, that added together give a triangular number (144525501 = T₁₇₀₀₁).

The spelling of 1445254992 in words is "one billion, four hundred forty-five million, two hundred fifty-four thousand, nine hundred ninety-two".