1154092890 has 16 divisors (see below), whose sum is σ = 2769823008. Its totient is φ = 307758096.

The previous prime is 1154092883. The next prime is 1154092913. The reversal of 1154092890 is 982904511.

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, 19234852 + ... + 19234911.

It is an arithmetic number, because the mean of its divisors is an integer number (173113938).

Almost surely, 2^1154092890 is an apocalyptic number.

1154092890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1154092890 is an abundant number, since it is smaller than the sum of its proper divisors (1615730118).

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

1154092890 is a wasteful number, since it uses less digits than its factorization.

1154092890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38469773.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1154092890 is about 33971.9426880477. The cubic root of 1154092890 is about 1048.9310027340.

The spelling of 1154092890 in words is "one billion, one hundred fifty-four million, ninety-two thousand, eight hundred ninety".