122778484 has 12 divisors (see below), whose sum is σ = 215006400. Its totient is φ = 61348088.

The previous prime is 122778463. The next prime is 122778493. The reversal of 122778484 is 484877221.

It is a super-2 number, since 2×122778484² = 30149112266676512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122778484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3004 + ... + 15955.

It is an arithmetic number, because the mean of its divisors is an integer number (17917200).

Almost surely, 2^122778484 is an apocalyptic number.

It is an amenable number.

122778484 is a deficient number, since it is larger than the sum of its proper divisors (92227916).

122778484 is a wasteful number, since it uses less digits than its factorization.

122778484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20582 (or 20580 counting only the distinct ones).

The product of its digits is 200704, while the sum is 43.

The square root of 122778484 is about 11080.5452934411. The cubic root of 122778484 is about 497.0202561961.

The spelling of 122778484 in words is "one hundred twenty-two million, seven hundred seventy-eight thousand, four hundred eighty-four".