1878373152 has 120 divisors (see below), whose sum is σ = 5714963100. Its totient is φ = 604509696.

The previous prime is 1878373141. The next prime is 1878373153. The reversal of 1878373152 is 2513738781.

It can be written as a sum of positive squares in 2 ways, for example, as 1628606736 + 249766416 = 40356^2 + 15804^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1878373098 and 1878373107.

It is not an unprimeable number, because it can be changed into a prime (1878373153) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62674 + ... + 87662.

Almost surely, 2^1878373152 is an apocalyptic number.

1878373152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878373152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2857481550).

1878373152 is an abundant number, since it is smaller than the sum of its proper divisors (3836589948).

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

1878373152 is a wasteful number, since it uses less digits than its factorization.

1878373152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25040 (or 25023 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 1878373152 is about 43340.2024914513. The cubic root of 1878373152 is about 1233.8450526816.

The spelling of 1878373152 in words is "one billion, eight hundred seventy-eight million, three hundred seventy-three thousand, one hundred fifty-two".