693040 has 20 divisors (see below), whose sum is σ = 1611504. Its totient is φ = 277184.

The previous prime is 693037. The next prime is 693041. The reversal of 693040 is 40396.

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (693041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4252 + ... + 4411.

2⁶⁹³⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

693040 is an abundant number, since it is smaller than the sum of its proper divisors (918464).

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

693040 is a wasteful number, since it uses less digits than its factorization.

693040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8676 (or 8670 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 693040 is about 832.4902401830. The cubic root of 693040 is about 88.4951426787.

The spelling of 693040 in words is "six hundred ninety-three thousand, forty".