3781269 has 16 divisors (see below), whose sum is σ = 5846400. Its totient is φ = 2410848.

The previous prime is 3781249. The next prime is 3781277. The reversal of 3781269 is 9621873.

It is not a de Polignac number, because 3781269 - 2⁵ = 3781237 is a prime.

It is a super-2 number, since 2×3781269² = 28595990500722, which contains 22 as substring.

3781269 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424 + ... + 3665.

It is an arithmetic number, because the mean of its divisors is an integer number (365400).

Almost surely, 2^3781269 is an apocalyptic number.

It is an amenable number.

3781269 is a deficient number, since it is larger than the sum of its proper divisors (2065131).

3781269 is a wasteful number, since it uses less digits than its factorization.

3781269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121 (or 6115 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3781269 is about 1944.5485337219. The cubic root of 3781269 is about 155.7922530497.

The spelling of 3781269 in words is "three million, seven hundred eighty-one thousand, two hundred sixty-nine".