1401012242 has 16 divisors (see below), whose sum is σ = 2402498880. Its totient is φ = 600242928.

The previous prime is 1401012241. The next prime is 1401012259. The reversal of 1401012242 is 2422101041.

It is a self number, because there is not a number n which added to its sum of digits gives 1401012242.

It is not an unprimeable number, because it can be changed into a prime (1401012241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35408 + ... + 63684.

It is an arithmetic number, because the mean of its divisors is an integer number (150156180).

Almost surely, 2^1401012242 is an apocalyptic number.

1401012242 is a deficient number, since it is larger than the sum of its proper divisors (1001486638).

1401012242 is a wasteful number, since it uses less digits than its factorization.

1401012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31825.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1401012242 is about 37430.0980762808. The cubic root of 1401012242 is about 1118.9584923495.

Adding to 1401012242 its reverse (2422101041), we get a palindrome (3823113283).

The spelling of 1401012242 in words is "one billion, four hundred one million, twelve thousand, two hundred forty-two".