404040401051402 has 4 divisors (see below), whose sum is σ = 606060601577106. Its totient is φ = 202020200525700.

The previous prime is 404040401051401. The next prime is 404040401051423. The reversal of 404040401051402 is 204150104040404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 283174146072841 + 120866254978561 = 16827779^2 + 10993919^2 .

It is not an unprimeable number, because it can be changed into a prime (404040401051401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010100262849 + ... + 101010100262852.

Almost surely, 2^{404040401051402} is an apocalyptic number.

404040401051402 is a deficient number, since it is larger than the sum of its proper divisors (202020200525704).

404040401051402 is a wasteful number, since it uses less digits than its factorization.

404040401051402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202020200525703.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 404040401051402 its reverse (204150104040404), we get a palindrome (608190505091806).

The spelling of 404040401051402 in words is "four hundred four trillion, forty billion, four hundred one million, fifty-one thousand, four hundred two".