2311400442 has 16 divisors (see below), whose sum is σ = 4978401120. Its totient is φ = 711200112.

The previous prime is 2311400431. The next prime is 2311400467. The reversal of 2311400442 is 2440041132.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 14816592 + ... + 14816747.

It is an arithmetic number, because the mean of its divisors is an integer number (311150070).

Almost surely, 2^2311400442 is an apocalyptic number.

2311400442 is an abundant number, since it is smaller than the sum of its proper divisors (2667000678).

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

2311400442 is a wasteful number, since it uses less digits than its factorization.

2311400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29633357.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2311400442 is about 48077.0261351511. The cubic root of 2311400442 is about 1322.1834924507.

Adding to 2311400442 its reverse (2440041132), we get a palindrome (4751441574).

It can be divided in two parts, 2311 and 400442, that added together give a triangular number (402753 = T₈₉₇).

The spelling of 2311400442 in words is "two billion, three hundred eleven million, four hundred thousand, four hundred forty-two".