405428896733 has 18 divisors (see below), whose sum is σ = 481869495486. Its totient is φ = 340116552048.

The previous prime is 405428896709. The next prime is 405428896783. The reversal of 405428896733 is 337698824504.

It can be written as a sum of positive squares in only one way, i.e., 399851346244 + 5577550489 = 632338^2 + 74683^2 .

It is not a de Polignac number, because 405428896733 - 2³⁶ = 336709419997 is a prime.

It is a super-2 number, since 2×405428896733² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405428896783) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1764566 + ... + 1981047.

It is an arithmetic number, because the mean of its divisors is an integer number (26770527527).

Almost surely, 2^405428896733 is an apocalyptic number.

It is an amenable number.

405428896733 is a deficient number, since it is larger than the sum of its proper divisors (76440598753).

405428896733 is an equidigital number, since it uses as much as digits as its factorization.

405428896733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745721 (or 3745667 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 405428896733 in words is "four hundred five billion, four hundred twenty-eight million, eight hundred ninety-six thousand, seven hundred thirty-three".