400536146 has 8 divisors (see below), whose sum is σ = 602762160. Its totient is φ = 199615428.

The previous prime is 400536121. The next prime is 400536173. The reversal of 400536146 is 641635004.

It is a happy number.

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

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, 325556 + ... + 326783.

It is an arithmetic number, because the mean of its divisors is an integer number (75345270).

Almost surely, 2^400536146 is an apocalyptic number.

400536146 is a deficient number, since it is larger than the sum of its proper divisors (202226014).

400536146 is a wasteful number, since it uses less digits than its factorization.

400536146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652648.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 400536146 is about 20013.3991615617. The cubic root of 400536146 is about 737.1353492150.

The spelling of 400536146 in words is "four hundred million, five hundred thirty-six thousand, one hundred forty-six".