940209452 has 72 divisors (see below), whose sum is σ = 2169825840. Its totient is φ = 352356480.

The previous prime is 940209451. The next prime is 940209469. The reversal of 940209452 is 254902049.

It is not an unprimeable number, because it can be changed into a prime (940209451) 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 23 ways as a sum of consecutive naturals, for example, 38702 + ... + 58122.

It is an arithmetic number, because the mean of its divisors is an integer number (30136470).

Almost surely, 2^940209452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 940209452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1084912920).

940209452 is an abundant number, since it is smaller than the sum of its proper divisors (1229616388).

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

940209452 is a wasteful number, since it uses less digits than its factorization.

940209452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19471 (or 19462 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 940209452 is about 30662.8350287445. The cubic root of 940209452 is about 979.6588608547.

The spelling of 940209452 in words is "nine hundred forty million, two hundred nine thousand, four hundred fifty-two".