406491430 has 8 divisors (see below), whose sum is σ = 731684592. Its totient is φ = 162596568.

The previous prime is 406491413. The next prime is 406491451. The reversal of 406491430 is 34194604.

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

It is a junction number, because it is equal to n+sod(n) for n = 406491392 and 406491401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20324562 + ... + 20324581.

It is an arithmetic number, because the mean of its divisors is an integer number (91460574).

Almost surely, 2^406491430 is an apocalyptic number.

406491430 is a deficient number, since it is larger than the sum of its proper divisors (325193162).

406491430 is a wasteful number, since it uses less digits than its factorization.

406491430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40649150.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 406491430 is about 20161.6326223845. The cubic root of 406491430 is about 740.7707030069.

The spelling of 406491430 in words is "four hundred six million, four hundred ninety-one thousand, four hundred thirty".