406736245 has 4 divisors (see below), whose sum is σ = 488083500. Its totient is φ = 325388992.

The previous prime is 406736221. The next prime is 406736251. The reversal of 406736245 is 542637604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208686916 + 198049329 = 14446^2 + 14073^2 .

It is a cyclic number.

It is not a de Polignac number, because 406736245 - 2²¹ = 404639093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40673620 + ... + 40673629.

It is an arithmetic number, because the mean of its divisors is an integer number (122020875).

Almost surely, 2^406736245 is an apocalyptic number.

It is an amenable number.

406736245 is a deficient number, since it is larger than the sum of its proper divisors (81347255).

406736245 is an equidigital number, since it uses as much as digits as its factorization.

406736245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81347254.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 406736245 is about 20167.7030174485. The cubic root of 406736245 is about 740.9193862437.

It can be divided in two parts, 40 and 6736245, that added together give a triangular number (6736285 = T₃₆₇₀).

The spelling of 406736245 in words is "four hundred six million, seven hundred thirty-six thousand, two hundred forty-five".