400461515 has 8 divisors (see below), whose sum is σ = 481697808. Its totient is φ = 319606560.

The previous prime is 400461511. The next prime is 400461539. The reversal of 400461515 is 515164004.

400461515 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 400461515 - 2² = 400461511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400461511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93017 + ... + 97226.

It is an arithmetic number, because the mean of its divisors is an integer number (60212226).

Almost surely, 2^400461515 is an apocalyptic number.

400461515 is a deficient number, since it is larger than the sum of its proper divisors (81236293).

400461515 is a wasteful number, since it uses less digits than its factorization.

400461515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190669.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 400461515 is about 20011.5345488546. The cubic root of 400461515 is about 737.0895634468.

The spelling of 400461515 in words is "four hundred million, four hundred sixty-one thousand, five hundred fifteen".