39745086 has 32 divisors (see below), whose sum is σ = 80974080. Its totient is φ = 13003584.

The previous prime is 39745049. The next prime is 39745087. The reversal of 39745086 is 68054793.

39745086 = T₄₁₃ + T₄₁₄ + ... + T₆₇₅.

It is a happy number.

It is a super-2 number, since 2×39745086² = 3159343722294792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39745087) 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, 140301 + ... + 140583.

It is an arithmetic number, because the mean of its divisors is an integer number (2530440).

Almost surely, 2^39745086 is an apocalyptic number.

39745086 is an abundant number, since it is smaller than the sum of its proper divisors (41228994).

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

39745086 is a wasteful number, since it uses less digits than its factorization.

39745086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 39745086 is about 6304.3703888652. The cubic root of 39745086 is about 341.2671458867.

The spelling of 39745086 in words is "thirty-nine million, seven hundred forty-five thousand, eighty-six".