3640525741 has 8 divisors (see below), whose sum is σ = 3856235904. Its totient is φ = 3424989120.

The previous prime is 3640525729. The next prime is 3640525747. The reversal of 3640525741 is 1475250463.

3640525741 is nontrivially palindromic in base 15.

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

It is a cyclic number.

It is not a de Polignac number, because 3640525741 - 2⁷ = 3640525613 is a prime.

It is a super-3 number, since 3×3640525741³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3640525741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640525747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1126 + ... + 85336.

It is an arithmetic number, because the mean of its divisors is an integer number (482029488).

Almost surely, 2^3640525741 is an apocalyptic number.

It is an amenable number.

3640525741 is a deficient number, since it is larger than the sum of its proper divisors (215710163).

3640525741 is a wasteful number, since it uses less digits than its factorization.

3640525741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86771.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 3640525741 is about 60336.7693947894. The cubic root of 3640525741 is about 1538.3483925108.

The spelling of 3640525741 in words is "three billion, six hundred forty million, five hundred twenty-five thousand, seven hundred forty-one".