11420040442 has 32 divisors (see below), whose sum is σ = 17859275280. Its totient is φ = 5470187520.

The previous prime is 11420040409. The next prime is 11420040449. The reversal of 11420040442 is 24404002411.

It can be written as a sum of positive squares in 8 ways, for example, as 7235373721 + 4184666721 = 85061^2 + 64689^2 .

It is a super-3 number, since 3×11420040442³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11420040449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5159328 + ... + 5161540.

Almost surely, 2^11420040442 is an apocalyptic number.

11420040442 is a deficient number, since it is larger than the sum of its proper divisors (6439234838).

11420040442 is a wasteful number, since it uses less digits than its factorization.

11420040442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 11420040442 its reverse (24404002411), we get a palindrome (35824042853).

The spelling of 11420040442 in words is "eleven billion, four hundred twenty million, forty thousand, four hundred forty-two".