39000420 has 48 divisors (see below), whose sum is σ = 121336320. Its totient is φ = 10399968.

The previous prime is 39000383. The next prime is 39000439. The reversal of 39000420 is 2400093.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 39000393 and 39000402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35572 + ... + 36651.

It is an arithmetic number, because the mean of its divisors is an integer number (2527840).

Almost surely, 2^39000420 is an apocalyptic number.

39000420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39000420 is an abundant number, since it is smaller than the sum of its proper divisors (82335900).

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

39000420 is a wasteful number, since it uses less digits than its factorization.

39000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72241 (or 72233 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 39000420 is about 6245.0316252202. The cubic root of 39000420 is about 339.1223616550.

The spelling of 39000420 in words is "thirty-nine million, four hundred twenty", and thus it is an aban number.