406927998 has 48 divisors (see below), whose sum is σ = 914986800. Its totient is φ = 130595328.

The previous prime is 406927987. The next prime is 406927999. The reversal of 406927998 is 899729604.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406927999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61453 + ... + 67751.

It is an arithmetic number, because the mean of its divisors is an integer number (19062225).

Almost surely, 2^406927998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406927998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457493400).

406927998 is an abundant number, since it is smaller than the sum of its proper divisors (508058802).

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

406927998 is a wasteful number, since it uses less digits than its factorization.

406927998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6441 (or 6438 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 406927998 is about 20172.4564195836. The cubic root of 406927998 is about 741.0358017309.

The spelling of 406927998 in words is "four hundred six million, nine hundred twenty-seven thousand, nine hundred ninety-eight".