67772340 has 72 divisors (see below), whose sum is σ = 208510848. Its totient is φ = 17814720.

The previous prime is 67772323. The next prime is 67772351. The reversal of 67772340 is 4327776.

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

It is a junction number, because it is equal to n+sod(n) for n = 67772295 and 67772304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10129 + ... + 15431.

It is an arithmetic number, because the mean of its divisors is an integer number (2895984).

Almost surely, 2^67772340 is an apocalyptic number.

67772340 is a gapful number since it is divisible by the number (60) 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 67772340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104255424).

67772340 is an abundant number, since it is smaller than the sum of its proper divisors (140738508).

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

67772340 is a wasteful number, since it uses less digits than its factorization.

67772340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389 (or 5384 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 67772340 is about 8232.3957630814. The cubic root of 67772340 is about 407.7094962037.

The spelling of 67772340 in words is "sixty-seven million, seven hundred seventy-two thousand, three hundred forty".