2923830 has 192 divisors, whose sum is σ = 10342080. Its totient is φ = 580608.

The previous prime is 2923807. The next prime is 2923831. The reversal of 2923830 is 383292.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2923794 and 2923803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2923831) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 171982 + ... + 171998.

It is an arithmetic number, because the mean of its divisors is an integer number (53865).

2^2923830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2923830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5171040).

2923830 is an abundant number, since it is smaller than the sum of its proper divisors (7418250).

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

2923830 is a wasteful number, since it uses less digits than its factorization.

2923830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2923830 is about 1709.9210508091. The cubic root of 2923830 is about 142.9938543661.

The spelling of 2923830 in words is "two million, nine hundred twenty-three thousand, eight hundred thirty".