407400040445 has 16 divisors (see below), whose sum is σ = 489858455088. Its totient is φ = 325268006400.

The previous prime is 407400040427. The next prime is 407400040561. The reversal of 407400040445 is 544040004704.

It can be written as a sum of positive squares in 8 ways, for example, as 31064415001 + 376335625444 = 176251^2 + 613462^2 .

It is not a de Polignac number, because 407400040445 - 2⁶ = 407400040381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16979297 + ... + 17003273.

It is an arithmetic number, because the mean of its divisors is an integer number (30616153443).

Almost surely, 2^407400040445 is an apocalyptic number.

It is an amenable number.

407400040445 is a deficient number, since it is larger than the sum of its proper divisors (82458414643).

407400040445 is a wasteful number, since it uses less digits than its factorization.

407400040445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30640.

The product of its (nonzero) digits is 35840, while the sum is 32.

The spelling of 407400040445 in words is "four hundred seven billion, four hundred million, forty thousand, four hundred forty-five".