11432421 has 96 divisors (see below), whose sum is σ = 23482368. Its totient is φ = 5365440.

The previous prime is 11432419. The next prime is 11432423. The reversal of 11432421 is 12423411.

It is an interprime number because it is at equal distance from previous prime (11432419) and next prime (11432423).

It is not a de Polignac number, because 11432421 - 2¹ = 11432419 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11432394 and 11432403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11432423) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 243220 + ... + 243266.

It is an arithmetic number, because the mean of its divisors is an integer number (244608).

Almost surely, 2^11432421 is an apocalyptic number.

11432421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11432421 is an abundant number, since it is smaller than the sum of its proper divisors (12049947).

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

11432421 is a wasteful number, since it uses less digits than its factorization.

11432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 81 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 11432421 is about 3381.1863302693. The cubic root of 11432421 is about 225.2748640843.

Adding to 11432421 its reverse (12423411), we get a palindrome (23855832).

The spelling of 11432421 in words is "eleven million, four hundred thirty-two thousand, four hundred twenty-one".