406026645 has 32 divisors (see below), whose sum is σ = 658358400. Its totient is φ = 213663744.

The previous prime is 406026631. The next prime is 406026671. The reversal of 406026645 is 546620604.

406026645 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 406026645 - 2¹³ = 406018453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401901 + ... + 402909.

It is an arithmetic number, because the mean of its divisors is an integer number (20573700).

Almost surely, 2^406026645 is an apocalyptic number.

It is an amenable number.

406026645 is a deficient number, since it is larger than the sum of its proper divisors (252331755).

406026645 is a wasteful number, since it uses less digits than its factorization.

406026645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 406026645 is about 20150.1028533355. The cubic root of 406026645 is about 740.4882612842.

The spelling of 406026645 in words is "four hundred six million, twenty-six thousand, six hundred forty-five".