1688434052 has 12 divisors (see below), whose sum is σ = 2962477056. Its totient is φ = 842012040.

The previous prime is 1688434043. The next prime is 1688434073. The reversal of 1688434052 is 2504348861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549524 + ... + 552587.

It is an arithmetic number, because the mean of its divisors is an integer number (246873088).

Almost surely, 2^1688434052 is an apocalyptic number.

It is an amenable number.

1688434052 is a deficient number, since it is larger than the sum of its proper divisors (1274043004).

1688434052 is a wasteful number, since it uses less digits than its factorization.

1688434052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102498 (or 1102496 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1688434052 is about 41090.5591590088. The cubic root of 1688434052 is about 1190.7704099605.

The spelling of 1688434052 in words is "one billion, six hundred eighty-eight million, four hundred thirty-four thousand, fifty-two".