400074 has 16 divisors (see below), whose sum is σ = 807840. Its totient is φ = 132080.

The previous prime is 400069. The next prime is 400087. The reversal of 400074 is 470004.

It is an unprimeable number.

400074 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (50490).

2⁴⁰⁰⁰⁷⁴ is an apocalyptic number.

400074 is an abundant number, since it is smaller than the sum of its proper divisors (407766).

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

400074 is a wasteful number, since it uses less digits than its factorization.

400074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 400074 is about 632.5140314649. The cubic root of 400074 is about 73.6851733315.

Adding to 400074 its reverse (470004), we get a palindrome (870078).

The spelling of 400074 in words is "four hundred thousand, seventy-four", and thus it is an iban number.