400449495 has 8 divisors (see below), whose sum is σ = 640719216. Its totient is φ = 213573056.

The previous prime is 400449463. The next prime is 400449521. The reversal of 400449495 is 594944004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400449495 - 2⁵ = 400449463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13348302 + ... + 13348331.

It is an arithmetic number, because the mean of its divisors is an integer number (80089902).

Almost surely, 2^400449495 is an apocalyptic number.

400449495 is a deficient number, since it is larger than the sum of its proper divisors (240269721).

400449495 is a wasteful number, since it uses less digits than its factorization.

400449495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26696641.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 400449495 is about 20011.2342198076. The cubic root of 400449495 is about 737.0821887014.

The spelling of 400449495 in words is "four hundred million, four hundred forty-nine thousand, four hundred ninety-five".