1490895871 has 16 divisors (see below), whose sum is σ = 1584554400. Its totient is φ = 1400813568.

The previous prime is 1490895841. The next prime is 1490895893. The reversal of 1490895871 is 1785980941.

It is a cyclic number.

It is not a de Polignac number, because 1490895871 - 2¹³ = 1490887679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490895841) 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, 136335 + ... + 146863.

It is an arithmetic number, because the mean of its divisors is an integer number (99034650).

Almost surely, 2^1490895871 is an apocalyptic number.

1490895871 is a deficient number, since it is larger than the sum of its proper divisors (93658529).

1490895871 is a wasteful number, since it uses less digits than its factorization.

1490895871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10698.

The product of its (nonzero) digits is 725760, while the sum is 52.

The square root of 1490895871 is about 38612.1207783256. The cubic root of 1490895871 is about 1142.3936243484.

The spelling of 1490895871 in words is "one billion, four hundred ninety million, eight hundred ninety-five thousand, eight hundred seventy-one".