1986342748 has 24 divisors (see below), whose sum is σ = 3744703872. Its totient is φ = 916476864.

The previous prime is 1986342737. The next prime is 1986342751. The reversal of 1986342748 is 8472436891.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 1986342695 and 1986342704.

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, 311286 + ... + 317602.

It is an arithmetic number, because the mean of its divisors is an integer number (156029328).

Almost surely, 2^1986342748 is an apocalyptic number.

It is an amenable number.

1986342748 is a deficient number, since it is larger than the sum of its proper divisors (1758361124).

1986342748 is a wasteful number, since it uses less digits than its factorization.

1986342748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12381 (or 12379 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 1986342748 is about 44568.4052665114. The cubic root of 1986342748 is about 1257.0466539945.

The spelling of 1986342748 in words is "one billion, nine hundred eighty-six million, three hundred forty-two thousand, seven hundred forty-eight".