402948406 has 16 divisors (see below), whose sum is σ = 702478080. Its totient is φ = 169764840.

The previous prime is 402948401. The next prime is 402948407. The reversal of 402948406 is 604849204.

It is a super-3 number, since 3×402948406³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402948401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243090 + ... + 244741.

It is an arithmetic number, because the mean of its divisors is an integer number (43904880).

Almost surely, 2^402948406 is an apocalyptic number.

402948406 is a deficient number, since it is larger than the sum of its proper divisors (299529674).

402948406 is a wasteful number, since it uses less digits than its factorization.

402948406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487899.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 402948406 is about 20073.5748186515. The cubic root of 402948406 is about 738.6122066097.

The spelling of 402948406 in words is "four hundred two million, nine hundred forty-eight thousand, four hundred six".