39944010 has 32 divisors (see below), whose sum is σ = 96059520. Its totient is φ = 10630208.

The previous prime is 39943997. The next prime is 39944017. The reversal of 39944010 is 1044993.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (39944017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18571 + ... + 20609.

It is an arithmetic number, because the mean of its divisors is an integer number (3001860).

Almost surely, 2^39944010 is an apocalyptic number.

39944010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39944010 is an abundant number, since it is smaller than the sum of its proper divisors (56115510).

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

39944010 is a wasteful number, since it uses less digits than its factorization.

39944010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 39944010 is about 6320.1273721342. The cubic root of 39944010 is about 341.8355455696.

The spelling of 39944010 in words is "thirty-nine million, nine hundred forty-four thousand, ten".