1490889678 has 8 divisors (see below), whose sum is σ = 2981779368. Its totient is φ = 496963224.

The previous prime is 1490889677. The next prime is 1490889689. The reversal of 1490889678 is 8769880941.

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

1490889678 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490889677) 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, 124240801 + ... + 124240812.

It is an arithmetic number, because the mean of its divisors is an integer number (372722421).

Almost surely, 2^1490889678 is an apocalyptic number.

1490889678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1490889678 is a wasteful number, since it uses less digits than its factorization.

1490889678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248481618.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The square root of 1490889678 is about 38612.0405832170. The cubic root of 1490889678 is about 1142.3920425582.

It can be divided in two parts, 149088 and 9678, that added together give a triangular number (158766 = T₅₆₃).

The spelling of 1490889678 in words is "one billion, four hundred ninety million, eight hundred eighty-nine thousand, six hundred seventy-eight".