42499080 has 160 divisors (see below), whose sum is σ = 153984600. Its totient is φ = 10450944.

The previous prime is 42499063. The next prime is 42499081. The reversal of 42499080 is 8099424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22410756 + 20088324 = 4734^2 + 4482^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42499081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41616 + ... + 42624.

Almost surely, 2^42499080 is an apocalyptic number.

42499080 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 42499080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76992300).

42499080 is an abundant number, since it is smaller than the sum of its proper divisors (111485520).

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

42499080 is a wasteful number, since it uses less digits than its factorization.

42499080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 42499080 is about 6519.1318440418. The cubic root of 42499080 is about 348.9740842216.

The spelling of 42499080 in words is "forty-two million, four hundred ninety-nine thousand, eighty".