42497000 has 128 divisors (see below), whose sum is σ = 122653440. Its totient is φ = 13420800.

The previous prime is 42496999. The next prime is 42497069. The reversal of 42497000 is 79424.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90767 + ... + 91233.

It is an arithmetic number, because the mean of its divisors is an integer number (958230).

Almost surely, 2^42497000 is an apocalyptic number.

42497000 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 42497000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61326720).

42497000 is an abundant number, since it is smaller than the sum of its proper divisors (80156440).

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

42497000 is a wasteful number, since it uses less digits than its factorization.

42497000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 42497000 is about 6518.9723116454. The cubic root of 42497000 is about 348.9683909381.

The spelling of 42497000 in words is "forty-two million, four hundred ninety-seven thousand".