122152440 has 64 divisors (see below), whose sum is σ = 367184160. Its totient is φ = 32509440.

The previous prime is 122152427. The next prime is 122152469. The reversal of 122152440 is 44251221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119130 + ... + 120150.

Almost surely, 2^122152440 is an apocalyptic number.

122152440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122152440 is an abundant number, since it is smaller than the sum of its proper divisors (245031720).

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

122152440 is a wasteful number, since it uses less digits than its factorization.

122152440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2028 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122152440 is about 11052.2594974964. The cubic root of 122152440 is about 496.1740522527.

The spelling of 122152440 in words is "one hundred twenty-two million, one hundred fifty-two thousand, four hundred forty".