2311402 has 4 divisors (see below), whose sum is σ = 3467106. Its totient is φ = 1155700.

The previous prime is 2311381. The next prime is 2311409. The reversal of 2311402 is 2041132.

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., 2042041 + 269361 = 1429^2 + 519^2 .

It is not an unprimeable number, because it can be changed into a prime (2311409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577849 + ... + 577852.

2^2311402 is an apocalyptic number.

2311402 is a deficient number, since it is larger than the sum of its proper divisors (1155704).

2311402 is a wasteful number, since it uses less digits than its factorization.

2311402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155703.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2311402 is about 1520.3295695342. The cubic root of 2311402 is about 132.2183789523.

Adding to 2311402 its reverse (2041132), we get a palindrome (4352534).

The spelling of 2311402 in words is "two million, three hundred eleven thousand, four hundred two".