1447381404 has 108 divisors (see below), whose sum is σ = 4326082488. Its totient is φ = 406728000.

The previous prime is 1447381337. The next prime is 1447381417. The reversal of 1447381404 is 4041837441.

It is a happy number.

It is a super-2 number, since 2×1447381404² = 4189825857290022432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 100879 + ... + 114329.

Almost surely, 2^1447381404 is an apocalyptic number.

1447381404 is a gapful number since it is divisible by the number (14) 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 1447381404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2163041244).

1447381404 is an abundant number, since it is smaller than the sum of its proper divisors (2878701084).

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

1447381404 is a wasteful number, since it uses less digits than its factorization.

1447381404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536 (or 13524 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 1447381404 is about 38044.4661416086. The cubic root of 1447381404 is about 1131.1694380365.

The spelling of 1447381404 in words is "one billion, four hundred forty-seven million, three hundred eighty-one thousand, four hundred four".