11780042 has 8 divisors (see below), whose sum is σ = 17684676. Its totient is φ = 5885152.

The previous prime is 11780039. The next prime is 11780051. The reversal of 11780042 is 24008711.

It can be written as a sum of positive squares in 2 ways, for example, as 11771761 + 8281 = 3431^2 + 91^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158 + ... + 5790.

Almost surely, 2^11780042 is an apocalyptic number.

11780042 is a deficient number, since it is larger than the sum of its proper divisors (5904634).

11780042 is a wasteful number, since it uses less digits than its factorization.

11780042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 11780042 is about 3432.2065788644. The cubic root of 11780042 is about 227.5353855516.

Adding to 11780042 its reverse (24008711), we get a palindrome (35788753).

The spelling of 11780042 in words is "eleven million, seven hundred eighty thousand, forty-two".