1490493813 has 8 divisors (see below), whose sum is σ = 2021008800. Its totient is φ = 976820688.

The previous prime is 1490493811. The next prime is 1490493847. The reversal of 1490493813 is 3183940941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1490493813 - 2¹ = 1490493811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490493811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4210258 + ... + 4210611.

It is an arithmetic number, because the mean of its divisors is an integer number (252626100).

Almost surely, 2^1490493813 is an apocalyptic number.

It is an amenable number.

1490493813 is a deficient number, since it is larger than the sum of its proper divisors (530514987).

1490493813 is an equidigital number, since it uses as much as digits as its factorization.

1490493813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420931.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1490493813 is about 38606.9140569406. The cubic root of 1490493813 is about 1142.2909232814.

The spelling of 1490493813 in words is "one billion, four hundred ninety million, four hundred ninety-three thousand, eight hundred thirteen".