993694460 has 48 divisors (see below), whose sum is σ = 2349914112. Its totient is φ = 349684800.

The previous prime is 993694451. The next prime is 993694463. The reversal of 993694460 is 64496399.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 993694399 and 993694408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993694463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66032 + ... + 79671.

It is an arithmetic number, because the mean of its divisors is an integer number (48956544).

Almost surely, 2^993694460 is an apocalyptic number.

It is an amenable number.

993694460 is an abundant number, since it is smaller than the sum of its proper divisors (1356219652).

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

993694460 is a wasteful number, since it uses less digits than its factorization.

993694460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145754 (or 145752 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 993694460 is about 31522.9195982859. The cubic root of 993694460 is about 997.8937200328.

The spelling of 993694460 in words is "nine hundred ninety-three million, six hundred ninety-four thousand, four hundred sixty".