3646241257 has 8 divisors (see below), whose sum is σ = 3745627776. Its totient is φ = 3546898992.

The previous prime is 3646241251. The next prime is 3646241317. The reversal of 3646241257 is 7521426463.

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 3646241257 - 2³¹ = 1498757609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3646241251) 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, 221568 + ... + 237454.

It is an arithmetic number, because the mean of its divisors is an integer number (468203472).

Almost surely, 2^3646241257 is an apocalyptic number.

3646241257 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3646241257 is a deficient number, since it is larger than the sum of its proper divisors (99386519).

3646241257 is a wasteful number, since it uses less digits than its factorization.

3646241257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22127.

The product of its digits is 241920, while the sum is 40.

The square root of 3646241257 is about 60384.1142768526. The cubic root of 3646241257 is about 1539.1530251553.

The spelling of 3646241257 in words is "three billion, six hundred forty-six million, two hundred forty-one thousand, two hundred fifty-seven".