3640143574 has 8 divisors (see below), whose sum is σ = 5461020648. Its totient is φ = 1819803360.

The previous prime is 3640143569. The next prime is 3640143587. The reversal of 3640143574 is 4753410463.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116812 + ... + 144655.

It is an arithmetic number, because the mean of its divisors is an integer number (682627581).

Almost surely, 2^3640143574 is an apocalyptic number.

3640143574 is a deficient number, since it is larger than the sum of its proper divisors (1820877074).

3640143574 is a wasteful number, since it uses less digits than its factorization.

3640143574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268430.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 3640143574 is about 60333.6023621995. The cubic root of 3640143574 is about 1538.2945608570.

The spelling of 3640143574 in words is "three billion, six hundred forty million, one hundred forty-three thousand, five hundred seventy-four".