405487400422 has 32 divisors (see below), whose sum is σ = 659087440704. Its totient is φ = 185985868800.

The previous prime is 405487400399. The next prime is 405487400429. The reversal of 405487400422 is 224004784504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405487400429) 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, 28307022 + ... + 28321342.

It is an arithmetic number, because the mean of its divisors is an integer number (20596482522).

Almost surely, 2^405487400422 is an apocalyptic number.

405487400422 is a deficient number, since it is larger than the sum of its proper divisors (253600040282).

405487400422 is a wasteful number, since it uses less digits than its factorization.

405487400422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21024.

The product of its (nonzero) digits is 286720, while the sum is 40.

The spelling of 405487400422 in words is "four hundred five billion, four hundred eighty-seven million, four hundred thousand, four hundred twenty-two".