402273985 has 8 divisors (see below), whose sum is σ = 508135680. Its totient is φ = 304881264.

The previous prime is 402273973. The next prime is 402273997. The reversal of 402273985 is 589372204.

It is an interprime number because it is at equal distance from previous prime (402273973) and next prime (402273997).

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

It is a cyclic number.

It is not a de Polignac number, because 402273985 - 2⁷ = 402273857 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2117137 + ... + 2117326.

It is an arithmetic number, because the mean of its divisors is an integer number (63516960).

Almost surely, 2^402273985 is an apocalyptic number.

It is an amenable number.

402273985 is a deficient number, since it is larger than the sum of its proper divisors (105861695).

402273985 is a wasteful number, since it uses less digits than its factorization.

402273985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234487.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 402273985 is about 20056.7690568546. The cubic root of 402273985 is about 738.1999009259.

The spelling of 402273985 in words is "four hundred two million, two hundred seventy-three thousand, nine hundred eighty-five".