1401224442 has 16 divisors (see below), whose sum is σ = 2862076032. Its totient is φ = 457136960.

The previous prime is 1401224437. The next prime is 1401224449. The reversal of 1401224442 is 2444221041.

It is a super-2 number, since 2×1401224442² = 3926859873716422728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401224449) 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, 2484159 + ... + 2484722.

It is an arithmetic number, because the mean of its divisors is an integer number (178879752).

Almost surely, 2^1401224442 is an apocalyptic number.

1401224442 is an abundant number, since it is smaller than the sum of its proper divisors (1460851590).

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

1401224442 is a wasteful number, since it uses less digits than its factorization.

1401224442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968933.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1401224442 is about 37432.9325861600. The cubic root of 1401224442 is about 1119.0149826970.

Adding to 1401224442 its reverse (2444221041), we get a palindrome (3845445483).

The spelling of 1401224442 in words is "one billion, four hundred one million, two hundred twenty-four thousand, four hundred forty-two".