400493148 has 48 divisors (see below), whose sum is σ = 1021794816. Its totient is φ = 121080960.

The previous prime is 400493117. The next prime is 400493167. The reversal of 400493148 is 841394004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57840 + ... + 64392.

It is an arithmetic number, because the mean of its divisors is an integer number (21287392).

Almost surely, 2^400493148 is an apocalyptic number.

It is an amenable number.

400493148 is an abundant number, since it is smaller than the sum of its proper divisors (621301668).

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

400493148 is a wasteful number, since it uses less digits than its factorization.

400493148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034 (or 7032 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 400493148 is about 20012.3249024195. The cubic root of 400493148 is about 737.1089708383.

The spelling of 400493148 in words is "four hundred million, four hundred ninety-three thousand, one hundred forty-eight".