122770840 has 16 divisors (see below), whose sum is σ = 276234480. Its totient is φ = 49108320.

The previous prime is 122770831. The next prime is 122770841. The reversal of 122770840 is 48077221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122770841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1534596 + ... + 1534675.

It is an arithmetic number, because the mean of its divisors is an integer number (17264655).

Almost surely, 2^122770840 is an apocalyptic number.

122770840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122770840 is an abundant number, since it is smaller than the sum of its proper divisors (153463640).

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

122770840 is a wasteful number, since it uses less digits than its factorization.

122770840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069282 (or 3069278 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 122770840 is about 11080.2003591993. The cubic root of 122770840 is about 497.0099414092.

The spelling of 122770840 in words is "one hundred twenty-two million, seven hundred seventy thousand, eight hundred forty".