77422260 has 24 divisors (see below), whose sum is σ = 216782496. Its totient is φ = 20645920.

The previous prime is 77422259. The next prime is 77422271. The reversal of 77422260 is 6222477.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645126 + ... + 645245.

It is an arithmetic number, because the mean of its divisors is an integer number (9032604).

Almost surely, 2^77422260 is an apocalyptic number.

It is an amenable number.

77422260 is an abundant number, since it is smaller than the sum of its proper divisors (139360236).

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

77422260 is a wasteful number, since it uses less digits than its factorization.

77422260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290383 (or 1290381 counting only the distinct ones).

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

The square root of 77422260 is about 8798.9919877222. The cubic root of 77422260 is about 426.2083443841.

The spelling of 77422260 in words is "seventy-seven million, four hundred twenty-two thousand, two hundred sixty".