402077966 has 8 divisors (see below), whose sum is σ = 608753880. Its totient is φ = 199160008.

The previous prime is 402077959. The next prime is 402077969. The reversal of 402077966 is 669770204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402077969) 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, 939221 + ... + 939648.

It is an arithmetic number, because the mean of its divisors is an integer number (76094235).

Almost surely, 2^402077966 is an apocalyptic number.

402077966 is a deficient number, since it is larger than the sum of its proper divisors (206675914).

402077966 is a wasteful number, since it uses less digits than its factorization.

402077966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878978.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 402077966 is about 20051.8818568233. The cubic root of 402077966 is about 738.0799787491.

The spelling of 402077966 in words is "four hundred two million, seventy-seven thousand, nine hundred sixty-six".