240101421 has 24 divisors (see below), whose sum is σ = 394312320. Its totient is φ = 129128832.

The previous prime is 240101419. The next prime is 240101437. The reversal of 240101421 is 124101042.

It is not a de Polignac number, because 240101421 - 2¹ = 240101419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240101421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240101021) 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, 45541 + ... + 50538.

It is an arithmetic number, because the mean of its divisors is an integer number (16429680).

Almost surely, 2^240101421 is an apocalyptic number.

240101421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

240101421 is a deficient number, since it is larger than the sum of its proper divisors (154210899).

240101421 is a wasteful number, since it uses less digits than its factorization.

240101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96113 (or 96106 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 240101421 is about 15495.2063877833. The cubic root of 240101421 is about 621.5340273705.

Adding to 240101421 its reverse (124101042), we get a palindrome (364202463).

The spelling of 240101421 in words is "two hundred forty million, one hundred one thousand, four hundred twenty-one".