42151040 has 64 divisors (see below), whose sum is σ = 102375360. Its totient is φ = 16591872.

The previous prime is 42151027. The next prime is 42151049. The reversal of 42151040 is 4015124.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (42151049) 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, 42389 + ... + 43371.

It is an arithmetic number, because the mean of its divisors is an integer number (1599615).

Almost surely, 2^42151040 is an apocalyptic number.

42151040 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 42151040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51187680).

42151040 is an abundant number, since it is smaller than the sum of its proper divisors (60224320).

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

42151040 is an equidigital number, since it uses as much as digits as its factorization.

42151040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42151040 is about 6492.3832296007. The cubic root of 42151040 is about 348.0188477923.

Adding to 42151040 its reverse (4015124), we get a palindrome (46166164).

The spelling of 42151040 in words is "forty-two million, one hundred fifty-one thousand, forty".