42154920 has 96 divisors (see below), whose sum is σ = 144237600. Its totient is φ = 10647936.

The previous prime is 42154919. The next prime is 42154927. The reversal of 42154920 is 2945124.

It is not an unprimeable number, because it can be changed into a prime (42154927) 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, 3759 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (1502475).

Almost surely, 2^42154920 is an apocalyptic number.

42154920 is a gapful number since it is divisible by the number (40) 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 42154920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72118800).

42154920 is an abundant number, since it is smaller than the sum of its proper divisors (102082680).

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

42154920 is a wasteful number, since it uses less digits than its factorization.

42154920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6199 (or 6192 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42154920 is about 6492.6820344138. The cubic root of 42154920 is about 348.0295258341.

The spelling of 42154920 in words is "forty-two million, one hundred fifty-four thousand, nine hundred twenty".