1988534 has 16 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 941160.

The previous prime is 1988533. The next prime is 1988537. The reversal of 1988534 is 4358891.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6239 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

2^1988534 is an apocalyptic number.

1988534 is a deficient number, since it is larger than the sum of its proper divisors (1156426).

1988534 is a wasteful number, since it uses less digits than its factorization.

1988534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475.

The product of its digits is 34560, while the sum is 38.

The square root of 1988534 is about 1410.1538923110. The cubic root of 1988534 is about 125.7508724926.

The spelling of 1988534 in words is "one million, nine hundred eighty-eight thousand, five hundred thirty-four".