42031080 has 192 divisors, whose sum is σ = 168255360. Its totient is φ = 8861184.

The previous prime is 42031079. The next prime is 42031111. The reversal of 42031080 is 8013024.

It is a happy number.

It is a super-2 number, since 2×42031080² = 3533223371932800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32119 + ... + 33401.

It is an arithmetic number, because the mean of its divisors is an integer number (876330).

Almost surely, 2^42031080 is an apocalyptic number.

42031080 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 42031080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84127680).

42031080 is an abundant number, since it is smaller than the sum of its proper divisors (126224280).

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

42031080 is a wasteful number, since it uses less digits than its factorization.

42031080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42031080 is about 6483.1381290236. The cubic root of 42031080 is about 347.6883853382.

The spelling of 42031080 in words is "forty-two million, thirty-one thousand, eighty".