1128890294 has 16 divisors (see below), whose sum is σ = 1937395968. Its totient is φ = 483271272.

The previous prime is 1128890293. The next prime is 1128890317. The reversal of 1128890294 is 4920988211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128890293) 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, 31754 + ... + 57149.

It is an arithmetic number, because the mean of its divisors is an integer number (121087248).

Almost surely, 2^1128890294 is an apocalyptic number.

1128890294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1128890294 is a deficient number, since it is larger than the sum of its proper divisors (808505674).

1128890294 is an equidigital number, since it uses as much as digits as its factorization.

1128890294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89819.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 1128890294 is about 33598.9626923213. The cubic root of 1128890294 is about 1041.2393675040.

The spelling of 1128890294 in words is "one billion, one hundred twenty-eight million, eight hundred ninety thousand, two hundred ninety-four".