20870376 has 16 divisors (see below), whose sum is σ = 52176000. Its totient is φ = 6956784.

The previous prime is 20870371. The next prime is 20870389. The reversal of 20870376 is 67307802.

It is not an unprimeable number, because it can be changed into a prime (20870371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434776 + ... + 434823.

It is an arithmetic number, because the mean of its divisors is an integer number (3261000).

Almost surely, 2^20870376 is an apocalyptic number.

It is an amenable number.

20870376 is an abundant number, since it is smaller than the sum of its proper divisors (31305624).

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

20870376 is a wasteful number, since it uses less digits than its factorization.

20870376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869608 (or 869604 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 20870376 is about 4568.4106645528. The cubic root of 20870376 is about 275.3235904341.

The spelling of 20870376 in words is "twenty million, eight hundred seventy thousand, three hundred seventy-six".