1421714440 has 32 divisors (see below), whose sum is σ = 3212847000. Its totient is φ = 566198784.

The previous prime is 1421714431. The next prime is 1421714443. The reversal of 1421714440 is 444171241.

It can be written as a sum of positive squares in 4 ways, for example, as 1004002596 + 417711844 = 31686^2 + 20438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1421714399 and 1421714408.

It is not an unprimeable number, because it can be changed into a prime (1421714443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68445 + ... + 86764.

Almost surely, 2^1421714440 is an apocalyptic number.

1421714440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421714440 is an abundant number, since it is smaller than the sum of its proper divisors (1791132560).

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

1421714440 is a wasteful number, since it uses less digits than its factorization.

1421714440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155449 (or 155445 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 1421714440 is about 37705.6287575211. The cubic root of 1421714440 is about 1124.4430336023.

Adding to 1421714440 its reverse (444171241), we get a palindrome (1865885681).

It can be divided in two parts, 142171 and 4440, that added together give a triangular number (146611 = T₅₄₁).

The spelling of 1421714440 in words is "one billion, four hundred twenty-one million, seven hundred fourteen thousand, four hundred forty".