401616245 has 32 divisors (see below), whose sum is σ = 529079040. Its totient is φ = 291466240.

The previous prime is 401616227. The next prime is 401616251. The reversal of 401616245 is 542616104.

It is not a de Polignac number, because 401616245 - 2²⁴ = 384839029 is a prime.

It is a super-2 number, since 2×401616245² = 322591216495800050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265040 + ... + 266550.

It is an arithmetic number, because the mean of its divisors is an integer number (16533720).

Almost surely, 2^401616245 is an apocalyptic number.

It is an amenable number.

401616245 is a deficient number, since it is larger than the sum of its proper divisors (127462795).

401616245 is a wasteful number, since it uses less digits than its factorization.

401616245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 401616245 is about 20040.3653908805. The cubic root of 401616245 is about 737.7973490237.

The spelling of 401616245 in words is "four hundred one million, six hundred sixteen thousand, two hundred forty-five".