402240622 has 8 divisors (see below), whose sum is σ = 689555376. Its totient is φ = 172388832.

The previous prime is 402240613. The next prime is 402240637. The reversal of 402240622 is 226042204.

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

It is a junction number, because it is equal to n+sod(n) for n = 402240593 and 402240602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14365723 + ... + 14365750.

It is an arithmetic number, because the mean of its divisors is an integer number (86194422).

Almost surely, 2^402240622 is an apocalyptic number.

402240622 is a deficient number, since it is larger than the sum of its proper divisors (287314754).

402240622 is a wasteful number, since it uses less digits than its factorization.

402240622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28731482.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402240622 is about 20055.9373253907. The cubic root of 402240622 is about 738.1794925765.

Adding to 402240622 its reverse (226042204), we get a palindrome (628282826).

It can be divided in two parts, 4022 and 40622, that added together give a palindrome (44644).

The spelling of 402240622 in words is "four hundred two million, two hundred forty thousand, six hundred twenty-two".