1471223840 has 48 divisors (see below), whose sum is σ = 3506568408. Its totient is φ = 583274496.

The previous prime is 1471223837. The next prime is 1471223857. The reversal of 1471223840 is 483221741.

It can be written as a sum of positive squares in 4 ways, for example, as 1071383824 + 399840016 = 32732^2 + 19996^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1471223797 and 1471223806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22607 + ... + 58766.

Almost surely, 2^1471223840 is an apocalyptic number.

1471223840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1471223840 is an abundant number, since it is smaller than the sum of its proper divisors (2035344568).

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

1471223840 is a wasteful number, since it uses less digits than its factorization.

1471223840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81501 (or 81493 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 1471223840 is about 38356.5358185538. The cubic root of 1471223840 is about 1137.3468205760.

The spelling of 1471223840 in words is "one billion, four hundred seventy-one million, two hundred twenty-three thousand, eight hundred forty".