3781330 has 24 divisors (see below), whose sum is σ = 7918668. Its totient is φ = 1296288.

The previous prime is 3781313. The next prime is 3781367. The reversal of 3781330 is 331873.

It can be written as a sum of positive squares in 2 ways, for example, as 3759721 + 21609 = 1939^2 + 147^2 .

It is a super-3 number, since 3×3781330³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3781295 and 3781304.

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, 3369 + ... + 4348.

Almost surely, 2^3781330 is an apocalyptic number.

3781330 is an abundant number, since it is smaller than the sum of its proper divisors (4137338).

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

3781330 is a wasteful number, since it uses less digits than its factorization.

3781330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738 (or 7731 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3781330 is about 1944.5642185333. The cubic root of 3781330 is about 155.7930907998.

The spelling of 3781330 in words is "three million, seven hundred eighty-one thousand, three hundred thirty".