402071355 has 48 divisors (see below), whose sum is σ = 808414464. Its totient is φ = 181051200.

The previous prime is 402071353. The next prime is 402071381. The reversal of 402071355 is 553170204.

It is a happy number.

It is not a de Polignac number, because 402071355 - 2¹ = 402071353 is a prime.

It is a super-2 number, since 2×402071355² = 323322749023072050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402071353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11580 + ... + 30630.

It is an arithmetic number, because the mean of its divisors is an integer number (16841968).

Almost surely, 2^402071355 is an apocalyptic number.

402071355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

402071355 is an abundant number, since it is smaller than the sum of its proper divisors (406343109).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402071355 is a wasteful number, since it uses less digits than its factorization.

402071355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136 (or 19133 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 402071355 is about 20051.7170087751. The cubic root of 402071355 is about 738.0759335357.

The spelling of 402071355 in words is "four hundred two million, seventy-one thousand, three hundred fifty-five".