39893240 has 32 divisors (see below), whose sum is σ = 90478080. Its totient is φ = 15829632.

The previous prime is 39893219. The next prime is 39893291. The reversal of 39893240 is 4239893.

It is a junction number, because it is equal to n+sod(n) for n = 39893194 and 39893203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154 + ... + 9006.

It is an arithmetic number, because the mean of its divisors is an integer number (2827440).

Almost surely, 2^39893240 is an apocalyptic number.

It is an amenable number.

39893240 is an abundant number, since it is smaller than the sum of its proper divisors (50584840).

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

39893240 is a wasteful number, since it uses less digits than its factorization.

39893240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991 (or 7987 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 39893240 is about 6316.1095620643. The cubic root of 39893240 is about 341.6906565216.

The spelling of 39893240 in words is "thirty-nine million, eight hundred ninety-three thousand, two hundred forty".