1146688890 has 32 divisors (see below), whose sum is σ = 2753441856. Its totient is φ = 305629440.

The previous prime is 1146688889. The next prime is 1146688957. The reversal of 1146688890 is 988866411.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58770 + ... + 75810.

It is an arithmetic number, because the mean of its divisors is an integer number (86045058).

Almost surely, 2^1146688890 is an apocalyptic number.

1146688890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1146688890 is an abundant number, since it is smaller than the sum of its proper divisors (1606752966).

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

1146688890 is a wasteful number, since it uses less digits than its factorization.

1146688890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19294.

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 1146688890 is about 33862.7950706967. The cubic root of 1146688890 is about 1046.6830748957.

The spelling of 1146688890 in words is "one billion, one hundred forty-six million, six hundred eighty-eight thousand, eight hundred ninety".