402147226 has 32 divisors (see below), whose sum is σ = 684552960. Its totient is φ = 175785984.

The previous prime is 402147211. The next prime is 402147227. The reversal of 402147226 is 622741204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402147194 and 402147203.

It is not an unprimeable number, because it can be changed into a prime (402147227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58330 + ... + 64858.

It is an arithmetic number, because the mean of its divisors is an integer number (21392280).

Almost surely, 2^402147226 is an apocalyptic number.

402147226 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

402147226 is a deficient number, since it is larger than the sum of its proper divisors (282405734).

402147226 is a wasteful number, since it uses less digits than its factorization.

402147226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6670.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 402147226 is about 20053.6088024076. The cubic root of 402147226 is about 738.1223556749.

The spelling of 402147226 in words is "four hundred two million, one hundred forty-seven thousand, two hundred twenty-six".