2011402 has 4 divisors (see below), whose sum is σ = 3017106. Its totient is φ = 1005700.

The previous prime is 2011393. The next prime is 2011409. The reversal of 2011402 is 2041102.

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., 1718721 + 292681 = 1311^2 + 541^2 .

It is not an unprimeable number, because it can be changed into a prime (2011409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502849 + ... + 502852.

2^2011402 is an apocalyptic number.

2011402 is a deficient number, since it is larger than the sum of its proper divisors (1005704).

2011402 is a wasteful number, since it uses less digits than its factorization.

2011402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005703.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2011402 is about 1418.2390489618. The cubic root of 2011402 is about 126.2310784308.

Adding to 2011402 its reverse (2041102), we get a palindrome (4052504).

The spelling of 2011402 in words is "two million, eleven thousand, four hundred two".