3640371774 has 16 divisors (see below), whose sum is σ = 7840800912. Its totient is φ = 1120114368.

The previous prime is 3640371767. The next prime is 3640371829. The reversal of 3640371774 is 4771730463.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23335639 + ... + 23335794.

It is an arithmetic number, because the mean of its divisors is an integer number (490050057).

Almost surely, 2^3640371774 is an apocalyptic number.

3640371774 is an abundant number, since it is smaller than the sum of its proper divisors (4200429138).

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

3640371774 is a wasteful number, since it uses less digits than its factorization.

3640371774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46671451.

The product of its (nonzero) digits is 296352, while the sum is 42.

The square root of 3640371774 is about 60335.4934843497. The cubic root of 3640371774 is about 1538.3267053294.

The spelling of 3640371774 in words is "three billion, six hundred forty million, three hundred seventy-one thousand, seven hundred seventy-four".