406742146 has 16 divisors (see below), whose sum is σ = 617283576. Its totient is φ = 200987136.

The previous prime is 406742129. The next prime is 406742179. The reversal of 406742146 is 641247604.

It can be written as a sum of positive squares in 4 ways, for example, as 261177921 + 145564225 = 16161^2 + 12065^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215760 + ... + 217636.

Almost surely, 2^406742146 is an apocalyptic number.

406742146 is a deficient number, since it is larger than the sum of its proper divisors (210541430).

406742146 is a wasteful number, since it uses less digits than its factorization.

406742146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 406742146 is about 20167.8493151848. The cubic root of 406742146 is about 740.9229693553.

The spelling of 406742146 in words is "four hundred six million, seven hundred forty-two thousand, one hundred forty-six".