39699045 has 16 divisors (see below), whose sum is σ = 70576320. Its totient is φ = 21172752.

The previous prime is 39699043. The next prime is 39699059. The reversal of 39699045 is 54099693.

It is a happy number.

39699045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39699045 - 2¹ = 39699043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39699043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146899 + ... + 147168.

It is an arithmetic number, because the mean of its divisors is an integer number (4411020).

Almost surely, 2^39699045 is an apocalyptic number.

It is an amenable number.

39699045 is a deficient number, since it is larger than the sum of its proper divisors (30877275).

39699045 is a wasteful number, since it uses less digits than its factorization.

39699045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294081 (or 294075 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 39699045 is about 6300.7178162492. The cubic root of 39699045 is about 341.1353195133.

The spelling of 39699045 in words is "thirty-nine million, six hundred ninety-nine thousand, forty-five".