402471655 has 8 divisors (see below), whose sum is σ = 485665200. Its totient is φ = 320177856.

The previous prime is 402471647. The next prime is 402471659. The reversal of 402471655 is 556174204.

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 402471655 - 2³ = 402471647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402471655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402471659) 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, 223950 + ... + 225739.

It is an arithmetic number, because the mean of its divisors is an integer number (60708150).

Almost surely, 2^402471655 is an apocalyptic number.

402471655 is a deficient number, since it is larger than the sum of its proper divisors (83193545).

402471655 is a wasteful number, since it uses less digits than its factorization.

402471655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449873.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 402471655 is about 20061.6962144281. The cubic root of 402471655 is about 738.3207937217.

The spelling of 402471655 in words is "four hundred two million, four hundred seventy-one thousand, six hundred fifty-five".