405078479 has 8 divisors (see below), whose sum is σ = 448029120. Its totient is φ = 363812256.

The previous prime is 405078469. The next prime is 405078493. The reversal of 405078479 is 974870504.

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 405078479 - 2⁴ = 405078463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405078419) 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, 420599 + ... + 421560.

It is an arithmetic number, because the mean of its divisors is an integer number (56003640).

Almost surely, 2^405078479 is an apocalyptic number.

405078479 is a deficient number, since it is larger than the sum of its proper divisors (42950641).

405078479 is a wasteful number, since it uses less digits than its factorization.

405078479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842209.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 405078479 is about 20126.5615294814. The cubic root of 405078479 is about 739.9114083133.

The spelling of 405078479 in words is "four hundred five million, seventy-eight thousand, four hundred seventy-nine".