940092921 has 24 divisors (see below), whose sum is σ = 1370256264. Its totient is φ = 621054720.

The previous prime is 940092917. The next prime is 940092947. The reversal of 940092921 is 129290049.

940092921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 60140025 + 879952896 = 7755^2 + 29664^2 .

It is not a de Polignac number, because 940092921 - 2² = 940092917 is a prime.

It is a super-2 number, since 2×940092921² = 1767549400228624482, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (940082921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 735535 + ... + 736811.

It is an arithmetic number, because the mean of its divisors is an integer number (57094011).

Almost surely, 2^940092921 is an apocalyptic number.

It is an amenable number.

940092921 is a deficient number, since it is larger than the sum of its proper divisors (430163343).

940092921 is a wasteful number, since it uses less digits than its factorization.

940092921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 940092921 is about 30660.9347704860. The cubic root of 940092921 is about 979.6183857091.

The spelling of 940092921 in words is "nine hundred forty million, ninety-two thousand, nine hundred twenty-one".