400600074 has 16 divisors (see below), whose sum is σ = 915657408. Its totient is φ = 114457152.

The previous prime is 400600061. The next prime is 400600093. The reversal of 400600074 is 470006004.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 400600074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4769007 + ... + 4769090.

It is an arithmetic number, because the mean of its divisors is an integer number (57228588).

Almost surely, 2^400600074 is an apocalyptic number.

400600074 is an abundant number, since it is smaller than the sum of its proper divisors (515057334).

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

400600074 is a wasteful number, since it uses less digits than its factorization.

400600074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9538109.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 400600074 is about 20014.9962278288. The cubic root of 400600074 is about 737.1745642207.

Adding to 400600074 its reverse (470006004), we get a palindrome (870606078).

The spelling of 400600074 in words is "four hundred million, six hundred thousand, seventy-four".