20434132 has 6 divisors (see below), whose sum is σ = 35759738. Its totient is φ = 10217064.

The previous prime is 20434109. The next prime is 20434147. The reversal of 20434132 is 23143402.

It can be written as a sum of positive squares in only one way, i.e., 13808656 + 6625476 = 3716^2 + 2574^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554263 + ... + 2554270.

Almost surely, 2^20434132 is an apocalyptic number.

It is an amenable number.

20434132 is a deficient number, since it is larger than the sum of its proper divisors (15325606).

20434132 is a wasteful number, since it uses less digits than its factorization.

20434132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108537 (or 5108535 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20434132 is about 4520.4128130072. The cubic root of 20434132 is about 273.3917457289.

Adding to 20434132 its reverse (23143402), we get a palindrome (43577534).

The spelling of 20434132 in words is "twenty million, four hundred thirty-four thousand, one hundred thirty-two".