406426145390 has 8 divisors (see below), whose sum is σ = 731567061720. Its totient is φ = 162570458152.

The previous prime is 406426145371. The next prime is 406426145393. The reversal of 406426145390 is 93541624604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406426145393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20321307260 + ... + 20321307279.

It is an arithmetic number, because the mean of its divisors is an integer number (91445882715).

Almost surely, 2^406426145390 is an apocalyptic number.

406426145390 is a deficient number, since it is larger than the sum of its proper divisors (325140916330).

406426145390 is a wasteful number, since it uses less digits than its factorization.

406426145390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40642614546.

The product of its (nonzero) digits is 622080, while the sum is 44.

Adding to 406426145390 its reverse (93541624604), we get a palindrome (499967769994).

The spelling of 406426145390 in words is "four hundred six billion, four hundred twenty-six million, one hundred forty-five thousand, three hundred ninety".