1302421 has 8 divisors (see below), whose sum is σ = 1439424. Its totient is φ = 1172160.

The previous prime is 1302397. The next prime is 1302443. The reversal of 1302421 is 1242031.

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 1302421 - 2⁷ = 1302293 is a prime.

It is a super-2 number, since 2×1302421² = 3392600922482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302461) 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, 1275 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (179928).

2^1302421 is an apocalyptic number.

It is an amenable number.

1302421 is a deficient number, since it is larger than the sum of its proper divisors (137003).

1302421 is a wasteful number, since it uses less digits than its factorization.

1302421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1302421 is about 1141.2366099981. The cubic root of 1302421 is about 109.2069966043.

Adding to 1302421 its reverse (1242031), we get a palindrome (2544452).

The spelling of 1302421 in words is "one million, three hundred two thousand, four hundred twenty-one".