405029530 has 8 divisors (see below), whose sum is σ = 729053172. Its totient is φ = 162011808.

The previous prime is 405029501. The next prime is 405029533. The reversal of 405029530 is 35920504.

It can be written as a sum of positive squares in 2 ways, for example, as 396368281 + 8661249 = 19909^2 + 2943^2 .

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

It is a super-3 number, since 3×405029530³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (405029533) 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, 20251467 + ... + 20251486.

Almost surely, 2^405029530 is an apocalyptic number.

405029530 is a deficient number, since it is larger than the sum of its proper divisors (324023642).

405029530 is a wasteful number, since it uses less digits than its factorization.

405029530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40502960.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 405029530 is about 20125.3454628734. The cubic root of 405029530 is about 739.8816038973.

The spelling of 405029530 in words is "four hundred five million, twenty-nine thousand, five hundred thirty".