1921132302 has 16 divisors (see below), whose sum is σ = 3872520192. Its totient is φ = 635334840.

The previous prime is 1921132267. The next prime is 1921132319. The reversal of 1921132302 is 2032311291.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259824 + ... + 1261347.

It is an arithmetic number, because the mean of its divisors is an integer number (242032512).

Almost surely, 2^1921132302 is an apocalyptic number.

1921132302 is an abundant number, since it is smaller than the sum of its proper divisors (1951387890).

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

1921132302 is a wasteful number, since it uses less digits than its factorization.

1921132302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521303.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1921132302 is about 43830.7232657642. The cubic root of 1921132302 is about 1243.1372825325.

Adding to 1921132302 its reverse (2032311291), we get a palindrome (3953443593).

The spelling of 1921132302 in words is "one billion, nine hundred twenty-one million, one hundred thirty-two thousand, three hundred two".