1780418132 has 24 divisors (see below), whose sum is σ = 3256362816. Its totient is φ = 850151808.

The previous prime is 1780418131. The next prime is 1780418149. The reversal of 1780418132 is 2318140871.

It is a junction number, because it is equal to n+sod(n) for n = 1780418092 and 1780418101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1780418131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44108 + ... + 74204.

It is an arithmetic number, because the mean of its divisors is an integer number (135681784).

Almost surely, 2^1780418132 is an apocalyptic number.

It is an amenable number.

1780418132 is a deficient number, since it is larger than the sum of its proper divisors (1475944684).

1780418132 is a wasteful number, since it uses less digits than its factorization.

1780418132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30767 (or 30765 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1780418132 is about 42195.0012679227. The cubic root of 1780418132 is about 1212.0131621469.

The spelling of 1780418132 in words is "one billion, seven hundred eighty million, four hundred eighteen thousand, one hundred thirty-two".