940239990 has 24 divisors (see below), whose sum is σ = 2444624208. Its totient is φ = 250730640.

The previous prime is 940239983. The next prime is 940240009. The reversal of 940239990 is 99932049.

940239990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5223466 + ... + 5223645.

It is an arithmetic number, because the mean of its divisors is an integer number (101859342).

Almost surely, 2^940239990 is an apocalyptic number.

940239990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

940239990 is an abundant number, since it is smaller than the sum of its proper divisors (1504384218).

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

940239990 is a wasteful number, since it uses less digits than its factorization.

940239990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447124 (or 10447121 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 940239990 is about 30663.3329890930. The cubic root of 940239990 is about 979.6694671787.

The spelling of 940239990 in words is "nine hundred forty million, two hundred thirty-nine thousand, nine hundred ninety".