39390342 has 32 divisors (see below), whose sum is σ = 81158112. Its totient is φ = 12739584.

The previous prime is 39390341. The next prime is 39390353. The reversal of 39390342 is 24309393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39390341) 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, 30208 + ... + 31484.

It is an arithmetic number, because the mean of its divisors is an integer number (2536191).

Almost surely, 2^39390342 is an apocalyptic number.

39390342 is an abundant number, since it is smaller than the sum of its proper divisors (41767770).

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

39390342 is a wasteful number, since it uses less digits than its factorization.

39390342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432.

The product of its (nonzero) digits is 17496, while the sum is 33.

The square root of 39390342 is about 6276.1725597692. The cubic root of 39390342 is about 340.2487856183.

The spelling of 39390342 in words is "thirty-nine million, three hundred ninety thousand, three hundred forty-two".