39677040 has 240 divisors, whose sum is σ = 149761248. Its totient is φ = 9704448.

The previous prime is 39677009. The next prime is 39677041. The reversal of 39677040 is 4077693.

39677040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 39676986 and 39677004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39677041) 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 47 ways as a sum of consecutive naturals, for example, 252642 + ... + 252798.

Almost surely, 2^39677040 is an apocalyptic number.

39677040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39677040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74880624).

39677040 is an abundant number, since it is smaller than the sum of its proper divisors (110084208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39677040 is a wasteful number, since it uses less digits than its factorization.

39677040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 39677040 is about 6298.9713445927. The cubic root of 39677040 is about 341.0722779456.

The spelling of 39677040 in words is "thirty-nine million, six hundred seventy-seven thousand, forty".