122638070 has 48 divisors (see below), whose sum is σ = 234118080. Its totient is φ = 46244352.

The previous prime is 122638067. The next prime is 122638079. The reversal of 122638070 is 70836221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122638079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513011 + ... + 513249.

It is an arithmetic number, because the mean of its divisors is an integer number (4877460).

Almost surely, 2^122638070 is an apocalyptic number.

122638070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122638070 is a deficient number, since it is larger than the sum of its proper divisors (111480010).

122638070 is a wasteful number, since it uses less digits than its factorization.

122638070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 122638070 is about 11074.2074208496. The cubic root of 122638070 is about 496.8307136933.

The spelling of 122638070 in words is "one hundred twenty-two million, six hundred thirty-eight thousand, seventy".