1778342852 has 24 divisors (see below), whose sum is σ = 3656174592. Its totient is φ = 746157600.

The previous prime is 1778342849. The next prime is 1778342899. The reversal of 1778342852 is 2582438771.

It is a junction number, because it is equal to n+sod(n) for n = 1778342797 and 1778342806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553924 + ... + 1555067.

It is an arithmetic number, because the mean of its divisors is an integer number (152340608).

Almost surely, 2^1778342852 is an apocalyptic number.

It is an amenable number.

1778342852 is an abundant number, since it is smaller than the sum of its proper divisors (1877831740).

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

1778342852 is a wasteful number, since it uses less digits than its factorization.

1778342852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109019 (or 3109017 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 1778342852 is about 42170.4025591409. The cubic root of 1778342852 is about 1211.5420659589.

The spelling of 1778342852 in words is "one billion, seven hundred seventy-eight million, three hundred forty-two thousand, eight hundred fifty-two".