406452774 has 96 divisors (see below), whose sum is σ = 1014868224. Its totient is φ = 106254720.

The previous prime is 406452701. The next prime is 406452791. The reversal of 406452774 is 477254604.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1227789 + ... + 1228119.

It is an arithmetic number, because the mean of its divisors is an integer number (10571544).

Almost surely, 2^406452774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406452774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507434112).

406452774 is an abundant number, since it is smaller than the sum of its proper divisors (608415450).

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

406452774 is a wasteful number, since it uses less digits than its factorization.

406452774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 39.

The square root of 406452774 is about 20160.6739470683. The cubic root of 406452774 is about 740.7472206421.

The spelling of 406452774 in words is "four hundred six million, four hundred fifty-two thousand, seven hundred seventy-four".