270381649 has 4 divisors (see below), whose sum is σ = 274417264. Its totient is φ = 266346036.

The previous prime is 270381637. The next prime is 270381667. The reversal of 270381649 is 946183072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-270381649 is a prime.

It is a super-2 number, since 2×270381649² = 146212472231918402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270381619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017707 + ... + 2017840.

It is an arithmetic number, because the mean of its divisors is an integer number (68604316).

Almost surely, 2^270381649 is an apocalyptic number.

It is an amenable number.

270381649 is a deficient number, since it is larger than the sum of its proper divisors (4035615).

270381649 is an equidigital number, since it uses as much as digits as its factorization.

270381649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035614.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 270381649 is about 16443.2858334337. The cubic root of 270381649 is about 646.6347961702.

The spelling of 270381649 in words is "two hundred seventy million, three hundred eighty-one thousand, six hundred forty-nine".