39629645 has 16 divisors (see below), whose sum is σ = 52002432. Its totient is φ = 28752960.

The previous prime is 39629609. The next prime is 39629647. The reversal of 39629645 is 54692693.

It is not a de Polignac number, because 39629645 - 2⁶ = 39629581 is a prime.

It is a super-3 number, since 3×39629645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39629596 and 39629605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39629647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39824 + ... + 40806.

It is an arithmetic number, because the mean of its divisors is an integer number (3250152).

Almost surely, 2^39629645 is an apocalyptic number.

It is an amenable number.

39629645 is a deficient number, since it is larger than the sum of its proper divisors (12372787).

39629645 is a wasteful number, since it uses less digits than its factorization.

39629645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732.

The product of its digits is 349920, while the sum is 44.

The square root of 39629645 is about 6295.2080982284. The cubic root of 39629645 is about 340.9364180007.

The spelling of 39629645 in words is "thirty-nine million, six hundred twenty-nine thousand, six hundred forty-five".