402426626 has 8 divisors (see below), whose sum is σ = 689874240. Its totient is φ = 172468548.

The previous prime is 402426623. The next prime is 402426667. The reversal of 402426626 is 626624204.

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 = 402426592 and 402426601.

It is not an unprimeable number, because it can be changed into a prime (402426623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14372366 + ... + 14372393.

It is an arithmetic number, because the mean of its divisors is an integer number (86234280).

Almost surely, 2^402426626 is an apocalyptic number.

402426626 is a deficient number, since it is larger than the sum of its proper divisors (287447614).

402426626 is a wasteful number, since it uses less digits than its factorization.

402426626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28744768.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 402426626 is about 20060.5739200054. The cubic root of 402426626 is about 738.2932579632.

The spelling of 402426626 in words is "four hundred two million, four hundred twenty-six thousand, six hundred twenty-six".