11442420234 has 64 divisors (see below), whose sum is σ = 29552716800. Its totient is φ = 3213845424.

The previous prime is 11442420233. The next prime is 11442420247. The reversal of 11442420234 is 43202424411.

11442420234 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 2 + 420 + 234 = 666.

It is a super-2 number, since 2×11442420234² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11442420198 and 11442420207.

It is not an unprimeable number, because it can be changed into a prime (11442420233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234232 + ... + 278835.

It is an arithmetic number, because the mean of its divisors is an integer number (461761200).

Almost surely, 2^11442420234 is an apocalyptic number.

11442420234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11442420234 is an abundant number, since it is smaller than the sum of its proper divisors (18110296566).

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

11442420234 is a wasteful number, since it uses less digits than its factorization.

11442420234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513144 (or 513138 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 11442420234 its reverse (43202424411), we get a palindrome (54644844645).

The spelling of 11442420234 in words is "eleven billion, four hundred forty-two million, four hundred twenty thousand, two hundred thirty-four".