1493578996 has 216 divisors, whose sum is σ = 3678246936. Its totient is φ = 523837440.

The previous prime is 1493578993. The next prime is 1493578997. The reversal of 1493578996 is 6998753941.

It can be written as a sum of positive squares in 12 ways, for example, as 616826896 + 876752100 = 24836^2 + 29610^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493578993) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36428736 + ... + 36428776.

It is an arithmetic number, because the mean of its divisors is an integer number (17028921).

Almost surely, 2^1493578996 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 1493578996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839123468).

1493578996 is an abundant number, since it is smaller than the sum of its proper divisors (2184667940).

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

1493578996 is a wasteful number, since it uses less digits than its factorization.

1493578996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 109 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 61.

The square root of 1493578996 is about 38646.8497551870. The cubic root of 1493578996 is about 1143.0785252889.

The spelling of 1493578996 in words is "one billion, four hundred ninety-three million, five hundred seventy-eight thousand, nine hundred ninety-six".