1878385152 has 160 divisors (see below), whose sum is σ = 5859874944. Its totient is φ = 523468800.

The previous prime is 1878385141. The next prime is 1878385153. The reversal of 1878385152 is 2515838781.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1878385153) 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, 438702 + ... + 442962.

Almost surely, 2^1878385152 is an apocalyptic number.

1878385152 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 1878385152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2929937472).

1878385152 is an abundant number, since it is smaller than the sum of its proper divisors (3981489792).

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

1878385152 is an equidigital number, since it uses as much as digits as its factorization.

1878385152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330 (or 4314 counting only the distinct ones).

The product of its digits is 537600, while the sum is 48.

The square root of 1878385152 is about 43340.3409308233. The cubic root of 1878385152 is about 1233.8476801519.

The spelling of 1878385152 in words is "one billion, eight hundred seventy-eight million, three hundred eighty-five thousand, one hundred fifty-two".