3642745 has 8 divisors (see below), whose sum is σ = 4473216. Its totient is φ = 2846256.

The previous prime is 3642739. The next prime is 3642791. The reversal of 3642745 is 5472463.

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

It is not a de Polignac number, because 3642745 - 2¹¹ = 3640697 is a prime.

It is a super-2 number, since 2×3642745² = 26539182270050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁸ + 6⁸ + 4² + 2 + 7⁴ + 4⁵ + 5⁹ .

It is a Duffinian 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, 8257 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (559152).

Almost surely, 2^3642745 is an apocalyptic number.

It is an amenable number.

3642745 is a deficient number, since it is larger than the sum of its proper divisors (830471).

3642745 is a wasteful number, since it uses less digits than its factorization.

3642745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16991.

The product of its digits is 20160, while the sum is 31.

The square root of 3642745 is about 1908.5976527283. The cubic root of 3642745 is about 153.8660920634.

The spelling of 3642745 in words is "three million, six hundred forty-two thousand, seven hundred forty-five".