1401121242 has 48 divisors (see below), whose sum is σ = 3102390720. Its totient is φ = 456892800.

The previous prime is 1401121177. The next prime is 1401121273. The reversal of 1401121242 is 2421211041.

1401121242 is a `hidden beast` number, since 1 + 401 + 1 + 21 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163234 + ... + 171602.

It is an arithmetic number, because the mean of its divisors is an integer number (64633140).

Almost surely, 2^1401121242 is an apocalyptic number.

1401121242 is an abundant number, since it is smaller than the sum of its proper divisors (1701269478).

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

1401121242 is a wasteful number, since it uses less digits than its factorization.

1401121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579 (or 8576 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1401121242 is about 37431.5540954420. The cubic root of 1401121242 is about 1118.9875102526.

Adding to 1401121242 its reverse (2421211041), we get a palindrome (3822332283).

It can be divided in two parts, 14011 and 21242, that added together give a palindrome (35253).

The spelling of 1401121242 in words is "one billion, four hundred one million, one hundred twenty-one thousand, two hundred forty-two".