121627940 has 24 divisors (see below), whose sum is σ = 291907392. Its totient is φ = 41700960.

The previous prime is 121627931. The next prime is 121627999. The reversal of 121627940 is 49726121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121627897 and 121627906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434246 + ... + 434525.

It is an arithmetic number, because the mean of its divisors is an integer number (12162808).

Almost surely, 2^121627940 is an apocalyptic number.

121627940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121627940 is an abundant number, since it is smaller than the sum of its proper divisors (170279452).

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

121627940 is a wasteful number, since it uses less digits than its factorization.

121627940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868787 (or 868785 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 121627940 is about 11028.5057918106. The cubic root of 121627940 is about 495.4628734983.

It can be divided in two parts, 12162 and 7940, that added together give a palindrome (20102).

The spelling of 121627940 in words is "one hundred twenty-one million, six hundred twenty-seven thousand, nine hundred forty".