46081890 has 24 divisors (see below), whose sum is σ = 119813148. Its totient is φ = 12288480.

The previous prime is 46081873. The next prime is 46081913. The reversal of 46081890 is 9818064.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44315649 + 1766241 = 6657^2 + 1329^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255921 + ... + 256100.

Almost surely, 2^46081890 is an apocalyptic number.

46081890 is an abundant number, since it is smaller than the sum of its proper divisors (73731258).

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

46081890 is a wasteful number, since it uses less digits than its factorization.

46081890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512034 (or 512031 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 46081890 is about 6788.3643096110. The cubic root of 46081890 is about 358.5172811940.

It can be divided in two parts, 46081 and 890, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 46081890 in words is "forty-six million, eighty-one thousand, eight hundred ninety".