3781466 has 8 divisors (see below), whose sum is σ = 6108564. Its totient is φ = 1745280.

The previous prime is 3781457. The next prime is 3781489. The reversal of 3781466 is 6641873.

It can be written as a sum of positive squares in 2 ways, for example, as 2739025 + 1042441 = 1655^2 + 1021^2 .

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

It is a super-3 number, since 3×3781466³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72695 + ... + 72746.

Almost surely, 2^3781466 is an apocalyptic number.

3781466 is a deficient number, since it is larger than the sum of its proper divisors (2327098).

3781466 is a wasteful number, since it uses less digits than its factorization.

3781466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145456.

The product of its digits is 24192, while the sum is 35.

The square root of 3781466 is about 1944.5991874934. The cubic root of 3781466 is about 155.7949585383.

The spelling of 3781466 in words is "three million, seven hundred eighty-one thousand, four hundred sixty-six".