1489357390 has 16 divisors (see below), whose sum is σ = 2746230480. Its totient is φ = 581212480.

The previous prime is 1489357367. The next prime is 1489357391. The reversal of 1489357390 is 937539841.

It is a super-2 number, since 2×1489357390² = 4436370870295224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489357391) 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, 1815880 + ... + 1816699.

It is an arithmetic number, because the mean of its divisors is an integer number (171639405).

Almost surely, 2^1489357390 is an apocalyptic number.

1489357390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1489357390 is a deficient number, since it is larger than the sum of its proper divisors (1256873090).

1489357390 is a wasteful number, since it uses less digits than its factorization.

1489357390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632627.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 1489357390 is about 38592.1933815636. The cubic root of 1489357390 is about 1142.0005372532. Note that the first 3 decimals are identical.

The spelling of 1489357390 in words is "one billion, four hundred eighty-nine million, three hundred fifty-seven thousand, three hundred ninety".