39497136 has 80 divisors (see below), whose sum is σ = 119040000. Its totient is φ = 11280192.

The previous prime is 39497123. The next prime is 39497147. The reversal of 39497136 is 63179493.

39497136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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, 15265 + ... + 17663.

It is an arithmetic number, because the mean of its divisors is an integer number (1488000).

Almost surely, 2^39497136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39497136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59520000).

39497136 is an abundant number, since it is smaller than the sum of its proper divisors (79542864).

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

39497136 is a wasteful number, since it uses less digits than its factorization.

39497136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431 (or 2411 counting only the distinct ones).

The product of its digits is 122472, while the sum is 42.

The square root of 39497136 is about 6284.6746932518. The cubic root of 39497136 is about 340.5559991648. Note that the first 3 decimals are identical.

The spelling of 39497136 in words is "thirty-nine million, four hundred ninety-seven thousand, one hundred thirty-six".