11420364540 has 48 divisors (see below), whose sum is σ = 34436793888. Its totient is φ = 2811166464.

The previous prime is 11420364521. The next prime is 11420364541. The reversal of 11420364540 is 4546302411.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11420364498 and 11420364507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420364541) 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, 7319967 + ... + 7321526.

It is an arithmetic number, because the mean of its divisors is an integer number (717433206).

Almost surely, 2^11420364540 is an apocalyptic number.

11420364540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11420364540 is an abundant number, since it is smaller than the sum of its proper divisors (23016429348).

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

11420364540 is a wasteful number, since it uses less digits than its factorization.

11420364540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14641518 (or 14641516 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 11420364540 its reverse (4546302411), we get a palindrome (15966666951).

The spelling of 11420364540 in words is "eleven billion, four hundred twenty million, three hundred sixty-four thousand, five hundred forty".