3649643274 has 32 divisors (see below), whose sum is σ = 7331852736. Its totient is φ = 1211132160.

The previous prime is 3649643251. The next prime is 3649643297. The reversal of 3649643274 is 4723469463.

It is an interprime number because it is at equal distance from previous prime (3649643251) and next prime (3649643297).

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 15 ways as a sum of consecutive naturals, for example, 2642064 + ... + 2643444.

It is an arithmetic number, because the mean of its divisors is an integer number (229120398).

Almost surely, 2^3649643274 is an apocalyptic number.

3649643274 is an abundant number, since it is smaller than the sum of its proper divisors (3682209462).

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

3649643274 is a wasteful number, since it uses less digits than its factorization.

3649643274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

The product of its digits is 2612736, while the sum is 48.

The square root of 3649643274 is about 60412.2775104531. The cubic root of 3649643274 is about 1539.6315633476.

The spelling of 3649643274 in words is "three billion, six hundred forty-nine million, six hundred forty-three thousand, two hundred seventy-four".