1490346089 has 4 divisors (see below), whose sum is σ = 1578013524. Its totient is φ = 1402678656.

The previous prime is 1490346079. The next prime is 1490346097. The reversal of 1490346089 is 9806430941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9806430941 = 1993 ⋅4920437.

It can be written as a sum of positive squares in 2 ways, for example, as 1160560489 + 329785600 = 34067^2 + 18160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1490346089 - 2⁸ = 1490345833 is a prime.

It is a super-2 number, since 2×1490346089² = 4442262929995191842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1490346059) 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, 43833692 + ... + 43833725.

It is an arithmetic number, because the mean of its divisors is an integer number (394503381).

Almost surely, 2^1490346089 is an apocalyptic number.

It is an amenable number.

1490346089 is a deficient number, since it is larger than the sum of its proper divisors (87667435).

1490346089 is an equidigital number, since it uses as much as digits as its factorization.

1490346089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87667434.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1490346089 is about 38605.0008289082. Note that the first 3 decimals coincide. The cubic root of 1490346089 is about 1142.2531842543.

The spelling of 1490346089 in words is "one billion, four hundred ninety million, three hundred forty-six thousand, eighty-nine".