1445273732 has 24 divisors (see below), whose sum is σ = 2937936960. Its totient is φ = 609248160.

The previous prime is 1445273719. The next prime is 1445273737. The reversal of 1445273732 is 2373725441.

It is a super-3 number, since 3×1445273732³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1445273737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421382 + ... + 424797.

It is an arithmetic number, because the mean of its divisors is an integer number (122414040).

Almost surely, 2^1445273732 is an apocalyptic number.

It is an amenable number.

1445273732 is an abundant number, since it is smaller than the sum of its proper divisors (1492663228).

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

1445273732 is a wasteful number, since it uses less digits than its factorization.

1445273732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846251 (or 846249 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 1445273732 is about 38016.7559373495. The cubic root of 1445273732 is about 1130.6201029088.

The spelling of 1445273732 in words is "one billion, four hundred forty-five million, two hundred seventy-three thousand, seven hundred thirty-two".