421032132 has 36 divisors (see below), whose sum is σ = 1126881756. Its totient is φ = 132088320.

The previous prime is 421032127. The next prime is 421032137. The reversal of 421032132 is 231230124.

It is an interprime number because it is at equal distance from previous prime (421032127) and next prime (421032137).

It can be written as a sum of positive squares in 2 ways, for example, as 319908996 + 101123136 = 17886^2 + 10056^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (421032137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343369 + ... + 344592.

It is an arithmetic number, because the mean of its divisors is an integer number (31302271).

Almost surely, 2^421032132 is an apocalyptic number.

It is an amenable number.

421032132 is an abundant number, since it is smaller than the sum of its proper divisors (705849624).

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

421032132 is a wasteful number, since it uses less digits than its factorization.

421032132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687988 (or 687983 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 421032132 is about 20519.0675226727. The cubic root of 421032132 is about 749.5001896602.

Adding to 421032132 its reverse (231230124), we get a palindrome (652262256).

The spelling of 421032132 in words is "four hundred twenty-one million, thirty-two thousand, one hundred thirty-two".