1423302421 has 8 divisors (see below), whose sum is σ = 1466393400. Its totient is φ = 1380454848.

The previous prime is 1423302409. The next prime is 1423302431. The reversal of 1423302421 is 1242033241.

It can be written as a sum of positive squares in 4 ways, for example, as 32832900 + 1390469521 = 5730^2 + 37289^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1423302421 - 2¹⁷ = 1423171349 is a prime.

It is a super-2 number, since 2×1423302421² = 4051579563248922482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423302392 and 1423302401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423302401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48946 + ... + 72403.

It is an arithmetic number, because the mean of its divisors is an integer number (183299175).

Almost surely, 2^1423302421 is an apocalyptic number.

It is an amenable number.

1423302421 is a deficient number, since it is larger than the sum of its proper divisors (43090979).

1423302421 is a wasteful number, since it uses less digits than its factorization.

1423302421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121703.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1423302421 is about 37726.6804927229. The cubic root of 1423302421 is about 1124.8615259356.

Adding to 1423302421 its reverse (1242033241), we get a palindrome (2665335662).

The spelling of 1423302421 in words is "one billion, four hundred twenty-three million, three hundred two thousand, four hundred twenty-one".