39884970 has 16 divisors (see below), whose sum is σ = 95724000. Its totient is φ = 10635984.

The previous prime is 39884969. The next prime is 39884981. The reversal of 39884970 is 7948893.

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, 664720 + ... + 664779.

It is an arithmetic number, because the mean of its divisors is an integer number (5982750).

Almost surely, 2^39884970 is an apocalyptic number.

39884970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39884970 is an abundant number, since it is smaller than the sum of its proper divisors (55839030).

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

39884970 is a wasteful number, since it uses less digits than its factorization.

39884970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329509.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 39884970 is about 6315.4548529777. The cubic root of 39884970 is about 341.6670436905.

The spelling of 39884970 in words is "thirty-nine million, eight hundred eighty-four thousand, nine hundred seventy".