1987948038 has 16 divisors (see below), whose sum is σ = 3977957376. Its totient is φ = 662305800.

The previous prime is 1987948003. The next prime is 1987948087. The reversal of 1987948038 is 8308497891.

It is a congruent number.

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, 73206 + ... + 96617.

It is an arithmetic number, because the mean of its divisors is an integer number (248622336).

Almost surely, 2^1987948038 is an apocalyptic number.

1987948038 is an abundant number, since it is smaller than the sum of its proper divisors (1990009338).

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

1987948038 is a wasteful number, since it uses less digits than its factorization.

1987948038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171779.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The square root of 1987948038 is about 44586.4109118462. The cubic root of 1987948038 is about 1257.3851959480.

The spelling of 1987948038 in words is "one billion, nine hundred eighty-seven million, nine hundred forty-eight thousand, thirty-eight".