1887790002 has 32 divisors (see below), whose sum is σ = 4318987392. Its totient is φ = 538863744.

The previous prime is 1887789989. The next prime is 1887790039. The reversal of 1887790002 is 2000977881.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25588 + ... + 66560.

It is an arithmetic number, because the mean of its divisors is an integer number (134968356).

Almost surely, 2^1887790002 is an apocalyptic number.

1887790002 is an abundant number, since it is smaller than the sum of its proper divisors (2431197390).

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

1887790002 is a wasteful number, since it uses less digits than its factorization.

1887790002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42082.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 1887790002 is about 43448.7054122444. The cubic root of 1887790002 is about 1235.9034955183.

The spelling of 1887790002 in words is "one billion, eight hundred eighty-seven million, seven hundred ninety thousand, two".