67427220 has 48 divisors (see below), whose sum is σ = 215768448. Its totient is φ = 15411840.

The previous prime is 67427207. The next prime is 67427231. The reversal of 67427220 is 2272476.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 79851 + ... + 80690.

It is an arithmetic number, because the mean of its divisors is an integer number (4495176).

Almost surely, 2^67427220 is an apocalyptic number.

67427220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67427220 is an abundant number, since it is smaller than the sum of its proper divisors (148341228).

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

67427220 is a wasteful number, since it uses less digits than its factorization.

67427220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160560 (or 160558 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 67427220 is about 8211.4079182562. The cubic root of 67427220 is about 407.0162525933.

Adding to 67427220 its reverse (2272476), we get a palindrome (69699696).

The spelling of 67427220 in words is "sixty-seven million, four hundred twenty-seven thousand, two hundred twenty".