2132678434 has 4 divisors (see below), whose sum is σ = 3199017654. Its totient is φ = 1066339216.

The previous prime is 2132678419. The next prime is 2132678437. The reversal of 2132678434 is 4348762312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1866499209 + 266179225 = 43203^2 + 16315^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2132678437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533169607 + ... + 533169610.

Almost surely, 2^2132678434 is an apocalyptic number.

2132678434 is a deficient number, since it is larger than the sum of its proper divisors (1066339220).

2132678434 is a wasteful number, since it uses less digits than its factorization.

2132678434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066339219.

The product of its digits is 193536, while the sum is 40.

The square root of 2132678434 is about 46180.9314977513. The cubic root of 2132678434 is about 1287.1874371685.

The spelling of 2132678434 in words is "two billion, one hundred thirty-two million, six hundred seventy-eight thousand, four hundred thirty-four".