409090861428 has 48 divisors (see below), whose sum is σ = 960714518400. Its totient is φ = 135484272000.

The previous prime is 409090861427. The next prime is 409090861483. The reversal of 409090861428 is 824168090904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409090861427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551798 + ... + 1796178.

It is an arithmetic number, because the mean of its divisors is an integer number (20014885800).

Almost surely, 2^409090861428 is an apocalyptic number.

It is an amenable number.

409090861428 is an abundant number, since it is smaller than the sum of its proper divisors (551623656972).

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

409090861428 is a wasteful number, since it uses less digits than its factorization.

409090861428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245288 (or 245286 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 409090861428 in words is "four hundred nine billion, ninety million, eight hundred sixty-one thousand, four hundred twenty-eight".