4268890 has 8 divisors (see below), whose sum is σ = 7684020. Its totient is φ = 1707552.

The previous prime is 4268881. The next prime is 4268893. The reversal of 4268890 is 988624.

4268890 = 922² + 923² + ... + 926².

It can be written as a sum of positive squares in 2 ways, for example, as 3568321 + 700569 = 1889^2 + 837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×4268890³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4268893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213435 + ... + 213454.

Almost surely, 2^4268890 is an apocalyptic number.

4268890 is a deficient number, since it is larger than the sum of its proper divisors (3415130).

4268890 is a wasteful number, since it uses less digits than its factorization.

4268890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426896.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 4268890 is about 2066.1292311954. The cubic root of 4268890 is about 162.2202207450.

It can be divided in two parts, 42688 and 90, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 4268890 in words is "four million, two hundred sixty-eight thousand, eight hundred ninety".