42270000 has 100 divisors (see below), whose sum is σ = 136550040. Its totient is φ = 11264000.

The previous prime is 42269999. The next prime is 42270001. The reversal of 42270000 is 7224.

It is an interprime number because it is at equal distance from previous prime (42269999) and next prime (42270001).

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (42270001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29296 + ... + 30704.

Almost surely, 2^42270000 is an apocalyptic number.

42270000 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 42270000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68275020).

42270000 is an abundant number, since it is smaller than the sum of its proper divisors (94280040).

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

42270000 is a wasteful number, since it uses less digits than its factorization.

42270000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 42270000 is about 6501.5382795151. The cubic root of 42270000 is about 348.3459368826.

Adding to 42270000 its reverse (7224), we get a palindrome (42277224).

The spelling of 42270000 in words is "forty-two million, two hundred seventy thousand".