400054148 has 12 divisors (see below), whose sum is σ = 753948300. Its totient is φ = 184640352.

The previous prime is 400054147. The next prime is 400054153. The reversal of 400054148 is 841450004.

It can be written as a sum of positive squares in 2 ways, for example, as 257538304 + 142515844 = 16048^2 + 11938^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (400054141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3846623 + ... + 3846726.

It is an arithmetic number, because the mean of its divisors is an integer number (62829025).

Almost surely, 2^400054148 is an apocalyptic number.

It is an amenable number.

400054148 is a deficient number, since it is larger than the sum of its proper divisors (353894152).

400054148 is a wasteful number, since it uses less digits than its factorization.

400054148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693366 (or 7693364 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 400054148 is about 20001.3536541905. The cubic root of 400054148 is about 736.8395453842.

The spelling of 400054148 in words is "four hundred million, fifty-four thousand, one hundred forty-eight".