122640044 has 6 divisors (see below), whose sum is σ = 214620084. Its totient is φ = 61320020.

The previous prime is 122640019. The next prime is 122640103. The reversal of 122640044 is 440046221.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15330002 + ... + 15330009.

It is an arithmetic number, because the mean of its divisors is an integer number (35770014).

Almost surely, 2^122640044 is an apocalyptic number.

It is an amenable number.

122640044 is a deficient number, since it is larger than the sum of its proper divisors (91980040).

122640044 is a wasteful number, since it uses less digits than its factorization.

122640044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30660015 (or 30660013 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 122640044 is about 11074.2965465080. The cubic root of 122640044 is about 496.8333793652.

Adding to 122640044 its reverse (440046221), we get a palindrome (562686265).

It can be divided in two parts, 12264004 and 4, that multiplied together give a square (49056016 = 7004²).

The spelling of 122640044 in words is "one hundred twenty-two million, six hundred forty thousand, forty-four".