20401041442 has 8 divisors (see below), whose sum is σ = 30756900636. Its totient is φ = 10148741232.

The previous prime is 20401041373. The next prime is 20401041443. The reversal of 20401041442 is 24414010402.

It can be written as a sum of positive squares in 2 ways, for example, as 20389269681 + 11771761 = 142791^2 + 3431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20401041443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25889253 + ... + 25890040.

Almost surely, 2^20401041442 is an apocalyptic number.

20401041442 is a deficient number, since it is larger than the sum of its proper divisors (10355859194).

20401041442 is a wasteful number, since it uses less digits than its factorization.

20401041442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51779492.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20401041442 its reverse (24414010402), we get a palindrome (44815051844).

The spelling of 20401041442 in words is "twenty billion, four hundred one million, forty-one thousand, four hundred forty-two".