406236145 has 16 divisors (see below), whose sum is σ = 557676288. Its totient is φ = 278285760.

The previous prime is 406236137. The next prime is 406236151. The reversal of 406236145 is 541632604.

It is not a de Polignac number, because 406236145 - 2³ = 406236137 is a prime.

It is a super-2 number, since 2×406236145² = 330055611008922050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33900 + ... + 44290.

It is an arithmetic number, because the mean of its divisors is an integer number (34854768).

Almost surely, 2^406236145 is an apocalyptic number.

It is an amenable number.

406236145 is a deficient number, since it is larger than the sum of its proper divisors (151440143).

406236145 is a wasteful number, since it uses less digits than its factorization.

406236145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11520.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 406236145 is about 20155.3006675663. The cubic root of 406236145 is about 740.6155974404.

Adding to 406236145 its reverse (541632604), we get a palindrome (947868749).

The spelling of 406236145 in words is "four hundred six million, two hundred thirty-six thousand, one hundred forty-five".