994399524 has 96 divisors (see below), whose sum is σ = 2674918400. Its totient is φ = 319127040.

The previous prime is 994399487. The next prime is 994399529. The reversal of 994399524 is 425993499.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (994399529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 766044 + ... + 767340.

Almost surely, 2^994399524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994399524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337459200).

994399524 is an abundant number, since it is smaller than the sum of its proper divisors (1680518876).

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

994399524 is a wasteful number, since it uses less digits than its factorization.

994399524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1562 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 994399524 is about 31534.1009702195. The cubic root of 994399524 is about 998.1296787459.

The spelling of 994399524 in words is "nine hundred ninety-four million, three hundred ninety-nine thousand, five hundred twenty-four".