400206026 has 32 divisors (see below), whose sum is σ = 685006848. Its totient is φ = 173582640.

The previous prime is 400206019. The next prime is 400206067. The reversal of 400206026 is 620602004.

It is a junction number, because it is equal to n+sod(n) for n = 400205989 and 400206007.

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, 306491 + ... + 307793.

It is an arithmetic number, because the mean of its divisors is an integer number (21406464).

Almost surely, 2^400206026 is an apocalyptic number.

400206026 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

400206026 is a deficient number, since it is larger than the sum of its proper divisors (284800822).

400206026 is a wasteful number, since it uses less digits than its factorization.

400206026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 400206026 is about 20005.1499869409. The cubic root of 400206026 is about 736.9327790611.

The spelling of 400206026 in words is "four hundred million, two hundred six thousand, twenty-six".