42151880 has 64 divisors (see below), whose sum is σ = 102600000. Its totient is φ = 15531264.

The previous prime is 42151873. The next prime is 42151897. The reversal of 42151880 is 8815124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27371 + ... + 28869.

It is an arithmetic number, because the mean of its divisors is an integer number (1603125).

Almost surely, 2^42151880 is an apocalyptic number.

42151880 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 42151880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51300000).

42151880 is an abundant number, since it is smaller than the sum of its proper divisors (60448120).

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

42151880 is a wasteful number, since it uses less digits than its factorization.

42151880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 42151880 is about 6492.4479204688. The cubic root of 42151880 is about 348.0211595889.

The spelling of 42151880 in words is "forty-two million, one hundred fifty-one thousand, eight hundred eighty".