405248739347 has 8 divisors (see below), whose sum is σ = 416556876432. Its totient is φ = 393959311200.

The previous prime is 405248739319. The next prime is 405248739373. The reversal of 405248739347 is 743937842504.

It is a happy number.

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 405248739347 - 2²⁸ = 404980303891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405248739292 and 405248739301.

It is not an unprimeable number, because it can be changed into a prime (405248739307) 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, 4633304 + ... + 4719957.

It is an arithmetic number, because the mean of its divisors is an integer number (52069609554).

Almost surely, 2^405248739347 is an apocalyptic number.

405248739347 is a deficient number, since it is larger than the sum of its proper divisors (11308137085).

405248739347 is a wasteful number, since it uses less digits than its factorization.

405248739347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354469.

The product of its (nonzero) digits is 20321280, while the sum is 56.

The spelling of 405248739347 in words is "four hundred five billion, two hundred forty-eight million, seven hundred thirty-nine thousand, three hundred forty-seven".