1447735428 has 18 divisors (see below), whose sum is σ = 3659553534. Its totient is φ = 482578464.

The previous prime is 1447735427. The next prime is 1447735463. The reversal of 1447735428 is 8245377441.

It can be written as a sum of positive squares in only one way, i.e., 1309860864 + 137874564 = 36192^2 + 11742^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1447735427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20107401 + ... + 20107472.

Almost surely, 2^1447735428 is an apocalyptic number.

1447735428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1447735428 is an abundant number, since it is smaller than the sum of its proper divisors (2211818106).

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

1447735428 is a wasteful number, since it uses less digits than its factorization.

1447735428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40214883 (or 40214878 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 1447735428 is about 38049.1186231692. The cubic root of 1447735428 is about 1131.2616571024.

The spelling of 1447735428 in words is "one billion, four hundred forty-seven million, seven hundred thirty-five thousand, four hundred twenty-eight".