1128970490 has 16 divisors (see below), whose sum is σ = 2070490248. Its totient is φ = 443067456.

The previous prime is 1128970483. The next prime is 1128970541. The reversal of 1128970490 is 940798211.

It can be written as a sum of positive squares in 4 ways, for example, as 983261449 + 145709041 = 31357^2 + 12071^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064537 + ... + 1065596.

Almost surely, 2^1128970490 is an apocalyptic number.

1128970490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128970490 is a deficient number, since it is larger than the sum of its proper divisors (941519758).

1128970490 is a wasteful number, since it uses less digits than its factorization.

1128970490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130193.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 1128970490 is about 33600.1561008279. The cubic root of 1128970490 is about 1041.2640233557.

The spelling of 1128970490 in words is "one billion, one hundred twenty-eight million, nine hundred seventy thousand, four hundred ninety".