1490443601 has 4 divisors (see below), whose sum is σ = 1578116772. Its totient is φ = 1402770432.

The previous prime is 1490443571. The next prime is 1490443621. The reversal of 1490443601 is 1063440941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1063440941 = 47 ⋅22626403.

It can be written as a sum of positive squares in 2 ways, for example, as 1311526225 + 178917376 = 36215^2 + 13376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1490443601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1490443621) 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, 43836560 + ... + 43836593.

It is an arithmetic number, because the mean of its divisors is an integer number (394529193).

Almost surely, 2^1490443601 is an apocalyptic number.

It is an amenable number.

1490443601 is a deficient number, since it is larger than the sum of its proper divisors (87673171).

1490443601 is an equidigital number, since it uses as much as digits as its factorization.

1490443601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87673170.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1490443601 is about 38606.2637534377. The cubic root of 1490443601 is about 1142.2780959094.

The spelling of 1490443601 in words is "one billion, four hundred ninety million, four hundred forty-three thousand, six hundred one".