1352421 has 12 divisors (see below), whose sum is σ = 2232672. Its totient is φ = 772776.

The previous prime is 1352419. The next prime is 1352441. The reversal of 1352421 is 1242531.

It is not a de Polignac number, because 1352421 - 2¹ = 1352419 is a prime.

It is a super-2 number, since 2×1352421² = 3658085122482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1352394 and 1352403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10671 + ... + 10796.

It is an arithmetic number, because the mean of its divisors is an integer number (186056).

2^1352421 is an apocalyptic number.

It is an amenable number.

1352421 is a deficient number, since it is larger than the sum of its proper divisors (880251).

1352421 is a wasteful number, since it uses less digits than its factorization.

1352421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21480 (or 21477 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1352421 is about 1162.9363697125. The cubic root of 1352421 is about 110.5869724700.

Adding to 1352421 its reverse (1242531), we get a palindrome (2594952).

It can be divided in two parts, 135 and 2421, that added together give a triangular number (2556 = T₇₁).

The spelling of 1352421 in words is "one million, three hundred fifty-two thousand, four hundred twenty-one".