1002038878 has 4 divisors (see below), whose sum is σ = 1503058320. Its totient is φ = 501019438.

The previous prime is 1002038839. The next prime is 1002038879. The reversal of 1002038878 is 8788302001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8788302001 = 23 ⋅382100087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002038879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250509718 + ... + 250509721.

It is an arithmetic number, because the mean of its divisors is an integer number (375764580).

Almost surely, 2^1002038878 is an apocalyptic number.

1002038878 is a deficient number, since it is larger than the sum of its proper divisors (501019442).

1002038878 is an equidigital number, since it uses as much as digits as its factorization.

1002038878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501019441.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 1002038878 is about 31654.9976780918. The cubic root of 1002038878 is about 1000.6791646310.

The spelling of 1002038878 in words is "one billion, two million, thirty-eight thousand, eight hundred seventy-eight".