923428140 has 24 divisors (see below), whose sum is σ = 2585598960. Its totient is φ = 246247488.

The previous prime is 923428111. The next prime is 923428147. The reversal of 923428140 is 41824329.

It is not an unprimeable number, because it can be changed into a prime (923428147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7695175 + ... + 7695294.

It is an arithmetic number, because the mean of its divisors is an integer number (107733290).

Almost surely, 2^923428140 is an apocalyptic number.

It is an amenable number.

923428140 is an abundant number, since it is smaller than the sum of its proper divisors (1662170820).

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

923428140 is a wasteful number, since it uses less digits than its factorization.

923428140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15390481 (or 15390479 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 923428140 is about 30387.9604448867. The cubic root of 923428140 is about 973.7953616916.

The spelling of 923428140 in words is "nine hundred twenty-three million, four hundred twenty-eight thousand, one hundred forty".