15420040226 has 16 divisors (see below), whose sum is σ = 23574564000. Its totient is φ = 7562435328.

The previous prime is 15420040219. The next prime is 15420040277. The reversal of 15420040226 is 62204002451.

It is a junction number, because it is equal to n+sod(n) for n = 15420040195 and 15420040204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92540 + ... + 198503.

It is an arithmetic number, because the mean of its divisors is an integer number (1473410250).

Almost surely, 2^15420040226 is an apocalyptic number.

15420040226 is a deficient number, since it is larger than the sum of its proper divisors (8154523774).

15420040226 is a wasteful number, since it uses less digits than its factorization.

15420040226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291553.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 15420040226 its reverse (62204002451), we get a palindrome (77624042677).

The spelling of 15420040226 in words is "fifteen billion, four hundred twenty million, forty thousand, two hundred twenty-six".