101423940 has 72 divisors (see below), whose sum is σ = 293610240. Its totient is φ = 26159040.

The previous prime is 101423929. The next prime is 101423947. The reversal of 101423940 is 49324101.

It is a self number, because there is not a number n which added to its sum of digits gives 101423940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101423947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56781 + ... + 58539.

It is an arithmetic number, because the mean of its divisors is an integer number (4077920).

Almost surely, 2^101423940 is an apocalyptic number.

101423940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101423940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146805120).

101423940 is an abundant number, since it is smaller than the sum of its proper divisors (192186300).

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

101423940 is a wasteful number, since it uses less digits than its factorization.

101423940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1800 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 101423940 is about 10070.9453379511. The cubic root of 101423940 is about 466.3516229648.

The spelling of 101423940 in words is "one hundred one million, four hundred twenty-three thousand, nine hundred forty".