1356432 has 80 divisors (see below), whose sum is σ = 4380672. Its totient is φ = 351360.

The previous prime is 1356431. The next prime is 1356451. The reversal of 1356432 is 2346531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1356431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3513 + ... + 3879.

2^1356432 is an apocalyptic number.

1356432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1356432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2190336).

1356432 is an abundant number, since it is smaller than the sum of its proper divisors (3024240).

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

1356432 is a wasteful number, since it uses less digits than its factorization.

1356432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 390 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 1356432 is about 1164.6596069238. The cubic root of 1356432 is about 110.6961905713.

Subtracting 1356432 from its reverse (2346531), we obtain a palindrome (990099).

The spelling of 1356432 in words is "one million, three hundred fifty-six thousand, four hundred thirty-two".