39495642 has 16 divisors (see below), whose sum is σ = 83148960. Its totient is φ = 12472272.

The previous prime is 39495637. The next prime is 39495649. The reversal of 39495642 is 24659493.

It is a junction number, because it is equal to n+sod(n) for n = 39495594 and 39495603.

It is not an unprimeable number, because it can be changed into a prime (39495649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173113 + ... + 173340.

It is an arithmetic number, because the mean of its divisors is an integer number (5196810).

Almost surely, 2^39495642 is an apocalyptic number.

39495642 is an abundant number, since it is smaller than the sum of its proper divisors (43653318).

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

39495642 is a wasteful number, since it uses less digits than its factorization.

39495642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346477.

The product of its digits is 233280, while the sum is 42.

The square root of 39495642 is about 6284.5558315604. Note that the first 3 decimals coincide. The cubic root of 39495642 is about 340.5517052072.

It can be divided in two parts, 3949 and 5642, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 39495642 in words is "thirty-nine million, four hundred ninety-five thousand, six hundred forty-two".