406491429 has 8 divisors (see below), whose sum is σ = 544983712. Its totient is φ = 269496720.

The previous prime is 406491413. The next prime is 406491451. The reversal of 406491429 is 924194604.

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

It is not a de Polignac number, because 406491429 - 2⁴ = 406491413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406491469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373759 + ... + 374844.

It is an arithmetic number, because the mean of its divisors is an integer number (68122964).

Almost surely, 2^406491429 is an apocalyptic number.

It is an amenable number.

406491429 is a deficient number, since it is larger than the sum of its proper divisors (138492283).

406491429 is a wasteful number, since it uses less digits than its factorization.

406491429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748787.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 406491429 is about 20161.6325975849. The cubic root of 406491429 is about 740.7707023994.

The spelling of 406491429 in words is "four hundred six million, four hundred ninety-one thousand, four hundred twenty-nine".