4081554 has 12 divisors (see below), whose sum is σ = 8843406. Its totient is φ = 1360512.

The previous prime is 4081549. The next prime is 4081579. The reversal of 4081554 is 4551804.

It can be written as a sum of positive squares in only one way, i.e., 2576025 + 1505529 = 1605^2 + 1227^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113359 + ... + 113394.

Almost surely, 2^4081554 is an apocalyptic number.

4081554 is an abundant number, since it is smaller than the sum of its proper divisors (4761852).

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

4081554 is a wasteful number, since it uses less digits than its factorization.

4081554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226761 (or 226758 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 4081554 is about 2020.2856233711. The cubic root of 4081554 is about 159.8116794748.

The spelling of 4081554 in words is "four million, eighty-one thousand, five hundred fifty-four".