1415128890 has 64 divisors (see below), whose sum is σ = 3888182016. Its totient is φ = 322900992.

The previous prime is 1415128867. The next prime is 1415128901. The reversal of 1415128890 is 988215141.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123234 + ... + 134226.

It is an arithmetic number, because the mean of its divisors is an integer number (60752844).

Almost surely, 2^1415128890 is an apocalyptic number.

1415128890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1415128890 is an abundant number, since it is smaller than the sum of its proper divisors (2473053126).

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

1415128890 is a wasteful number, since it uses less digits than its factorization.

1415128890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11623.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 1415128890 is about 37618.1989202035. The cubic root of 1415128890 is about 1122.7041614219.

It can be divided in two parts, 1415 and 128890, that added together give a triangular number (130305 = T₅₁₀).

The spelling of 1415128890 in words is "one billion, four hundred fifteen million, one hundred twenty-eight thousand, eight hundred ninety".