1416702421 has 4 divisors (see below), whose sum is σ = 1416842892. Its totient is φ = 1416561952.

The previous prime is 1416702407. The next prime is 1416702433. The reversal of 1416702421 is 1242076141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1242076141 = 157 ⋅7911313.

It can be written as a sum of positive squares in 2 ways, for example, as 1356080625 + 60621796 = 36825^2 + 7786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1416702421 - 2⁵ = 1416702389 is a prime.

It is a super-2 number, since 2×1416702421² = 4014091499334522482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1416702421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1416708421) 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, 53830 + ... + 75703.

It is an arithmetic number, because the mean of its divisors is an integer number (354210723).

Almost surely, 2^1416702421 is an apocalyptic number.

It is an amenable number.

1416702421 is a deficient number, since it is larger than the sum of its proper divisors (140471).

1416702421 is a wasteful number, since it uses less digits than its factorization.

1416702421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140470.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1416702421 is about 37639.1076010046. The cubic root of 1416702421 is about 1123.1201318760.

Adding to 1416702421 its reverse (1242076141), we get a palindrome (2658778562).

The spelling of 1416702421 in words is "one billion, four hundred sixteen million, seven hundred two thousand, four hundred twenty-one".