402460066 has 8 divisors (see below), whose sum is σ = 613586844. Its totient is φ = 197931120.

The previous prime is 402460061. The next prime is 402460087. The reversal of 402460066 is 660064204.

It can be written as a sum of positive squares in 2 ways, for example, as 401401225 + 1058841 = 20035^2 + 1029^2 .

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

It is not an unprimeable number, because it can be changed into a prime (402460061) 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 3 ways as a sum of consecutive naturals, for example, 1649305 + ... + 1649548.

Almost surely, 2^402460066 is an apocalyptic number.

402460066 is a deficient number, since it is larger than the sum of its proper divisors (211126778).

402460066 is a wasteful number, since it uses less digits than its factorization.

402460066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298916.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 402460066 is about 20061.4073783471. The cubic root of 402460066 is about 738.3137071094.

The spelling of 402460066 in words is "four hundred two million, four hundred sixty thousand, sixty-six".