400611148 has 24 divisors (see below), whose sum is σ = 836059392. Its totient is φ = 164225424.

The previous prime is 400611139. The next prime is 400611149. The reversal of 400611148 is 841116004.

It is not an unprimeable number, because it can be changed into a prime (400611149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310390 + ... + 311677.

It is an arithmetic number, because the mean of its divisors is an integer number (34835808).

Almost surely, 2^400611148 is an apocalyptic number.

It is an amenable number.

400611148 is an abundant number, since it is smaller than the sum of its proper divisors (435448244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400611148 is a wasteful number, since it uses less digits than its factorization.

400611148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622101 (or 622099 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 400611148 is about 20015.2728684872. The cubic root of 400611148 is about 737.1813568604.

It can be divided in two parts, 40061 and 1148, that added together give a square (41209 = 203²).

The spelling of 400611148 in words is "four hundred million, six hundred eleven thousand, one hundred forty-eight".