42495880 has 32 divisors (see below), whose sum is σ = 109275840. Its totient is φ = 14569920.

The previous prime is 42495857. The next prime is 42495899. The reversal of 42495880 is 8859424.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75606 + ... + 76165.

It is an arithmetic number, because the mean of its divisors is an integer number (3414870).

Almost surely, 2^42495880 is an apocalyptic number.

42495880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42495880 is an abundant number, since it is smaller than the sum of its proper divisors (66779960).

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

42495880 is a wasteful number, since it uses less digits than its factorization.

42495880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151789 (or 151785 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 42495880 is about 6518.8864079688. The cubic root of 42495880 is about 348.9653252469.

The spelling of 42495880 in words is "forty-two million, four hundred ninety-five thousand, eight hundred eighty".