10405220354 has 4 divisors (see below), whose sum is σ = 15607830534. Its totient is φ = 5202610176.

The previous prime is 10405220347. The next prime is 10405220359. The reversal of 10405220354 is 45302250401.

It is a happy number.

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., 6103828129 + 4301392225 = 78127^2 + 65585^2 .

It is a super-2 number, since 2×10405220354² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10405220359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2601305087 + ... + 2601305090.

Almost surely, 2^10405220354 is an apocalyptic number.

10405220354 is a deficient number, since it is larger than the sum of its proper divisors (5202610180).

10405220354 is an equidigital number, since it uses as much as digits as its factorization.

10405220354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202610179.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 10405220354 its reverse (45302250401), we get a palindrome (55707470755).

The spelling of 10405220354 in words is "ten billion, four hundred five million, two hundred twenty thousand, three hundred fifty-four".