20039070 has 32 divisors (see below), whose sum is σ = 48470400. Its totient is φ = 5301920.

The previous prime is 20039069. The next prime is 20039077. The reversal of 20039070 is 7093002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20039077) by changing a digit.

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, 1381 + ... + 6479.

It is an arithmetic number, because the mean of its divisors is an integer number (1514700).

Almost surely, 2^20039070 is an apocalyptic number.

20039070 is an abundant number, since it is smaller than the sum of its proper divisors (28431330).

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

20039070 is a wasteful number, since it uses less digits than its factorization.

20039070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 20039070 is about 4476.5019825752. The cubic root of 20039070 is about 271.6184005152.

The spelling of 20039070 in words is "twenty million, thirty-nine thousand, seventy".