2121962 has 4 divisors (see below), whose sum is σ = 3182946. Its totient is φ = 1060980.

The previous prime is 2121943. The next prime is 2121967. The reversal of 2121962 is 2691212.

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., 1079521 + 1042441 = 1039^2 + 1021^2 .

It is not an unprimeable number, because it can be changed into a prime (2121967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530489 + ... + 530492.

2^2121962 is an apocalyptic number.

2121962 is a deficient number, since it is larger than the sum of its proper divisors (1060984).

2121962 is a wasteful number, since it uses less digits than its factorization.

2121962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060983.

The product of its digits is 432, while the sum is 23.

The square root of 2121962 is about 1456.6955756094. The cubic root of 2121962 is about 128.5027832269.

It can be divided in two parts, 2121 and 962, that multiplied together give a palindrome (2040402).

The spelling of 2121962 in words is "two million, one hundred twenty-one thousand, nine hundred sixty-two".