397452452 has 18 divisors (see below), whose sum is σ = 738864882. Its totient is φ = 187035904.

The previous prime is 397452439. The next prime is 397452467. The reversal of 397452452 is 254254793.

It can be written as a sum of positive squares in 3 ways, for example, as 85082176 + 312370276 = 9224^2 + 17674^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170753 + ... + 173064.

It is an arithmetic number, because the mean of its divisors is an integer number (41048049).

Almost surely, 2^397452452 is an apocalyptic number.

It is an amenable number.

397452452 is a deficient number, since it is larger than the sum of its proper divisors (341412430).

397452452 is a wasteful number, since it uses less digits than its factorization.

397452452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343855 (or 343836 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 397452452 is about 19936.2095695245. The cubic root of 397452452 is about 735.2387593368.

The spelling of 397452452 in words is "three hundred ninety-seven million, four hundred fifty-two thousand, four hundred fifty-two".