1445214432 has 48 divisors (see below), whose sum is σ = 3828520080. Its totient is φ = 477315072.

The previous prime is 1445214409. The next prime is 1445214437. The reversal of 1445214432 is 2344125441.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1445214432² = 4177289508922165248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1445214432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445214437) 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, 58593 + ... + 79520.

It is an arithmetic number, because the mean of its divisors is an integer number (79760835).

Almost surely, 2^1445214432 is an apocalyptic number.

1445214432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1445214432 is an abundant number, since it is smaller than the sum of its proper divisors (2383305648).

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

1445214432 is a wasteful number, since it uses less digits than its factorization.

1445214432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138235 (or 138227 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 1445214432 is about 38015.9760100934. The cubic root of 1445214432 is about 1130.6046394739.

Adding to 1445214432 its reverse (2344125441), we get a palindrome (3789339873).

The spelling of 1445214432 in words is "one billion, four hundred forty-five million, two hundred fourteen thousand, four hundred thirty-two".