406040026 has 8 divisors (see below), whose sum is σ = 696068640. Its totient is φ = 174017148.

The previous prime is 406040023. The next prime is 406040029. The reversal of 406040026 is 620040604.

It is an interprime number because it is at equal distance from previous prime (406040023) and next prime (406040029).

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

It is a super-3 number, since 3×406040026³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 406039979 and 406040006.

It is not an unprimeable number, because it can be changed into a prime (406040021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14501416 + ... + 14501443.

It is an arithmetic number, because the mean of its divisors is an integer number (87008580).

Almost surely, 2^406040026 is an apocalyptic number.

406040026 is a deficient number, since it is larger than the sum of its proper divisors (290028614).

406040026 is a wasteful number, since it uses less digits than its factorization.

406040026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29002868.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 406040026 is about 20150.4348836446. The cubic root of 406040026 is about 740.4963956966.

The spelling of 406040026 in words is "four hundred six million, forty thousand, twenty-six".