400076048 has 20 divisors (see below), whose sum is σ = 782010588. Its totient is φ = 198266880.

The previous prime is 400076041. The next prime is 400076051. The reversal of 400076048 is 840670004.

It can be written as a sum of positive squares in 2 ways, for example, as 16386304 + 383689744 = 4048^2 + 19588^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 400076048.

It is not an unprimeable number, because it can be changed into a prime (400076041) 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, 108833 + ... + 112448.

Almost surely, 2^400076048 is an apocalyptic number.

It is an amenable number.

400076048 is a deficient number, since it is larger than the sum of its proper divisors (381934540).

400076048 is a wasteful number, since it uses less digits than its factorization.

400076048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221402 (or 221396 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 400076048 is about 20001.9011096446. The cubic root of 400076048 is about 736.8529906405.

The spelling of 400076048 in words is "four hundred million, seventy-six thousand, forty-eight".