1447971290 has 8 divisors (see below), whose sum is σ = 2606348340. Its totient is φ = 579188512.

The previous prime is 1447971263. The next prime is 1447971299. The reversal of 1447971290 is 921797441.

It can be written as a sum of positive squares in 2 ways, for example, as 1442556361 + 5414929 = 37981^2 + 2327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1447971290³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1447971299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72398555 + ... + 72398574.

Almost surely, 2^1447971290 is an apocalyptic number.

1447971290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1447971290 is a deficient number, since it is larger than the sum of its proper divisors (1158377050).

1447971290 is a wasteful number, since it uses less digits than its factorization.

1447971290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144797136.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1447971290 is about 38052.2179379862. The cubic root of 1447971290 is about 1131.3230880202.

The spelling of 1447971290 in words is "one billion, four hundred forty-seven million, nine hundred seventy-one thousand, two hundred ninety".