400007374 has 16 divisors (see below), whose sum is σ = 657120240. Its totient is φ = 181488960.

The previous prime is 400007359. The next prime is 400007381. The reversal of 400007374 is 473700004.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 128847 + ... + 131914.

It is an arithmetic number, because the mean of its divisors is an integer number (41070015).

Almost surely, 2^400007374 is an apocalyptic number.

400007374 is a deficient number, since it is larger than the sum of its proper divisors (257112866).

400007374 is a wasteful number, since it uses less digits than its factorization.

400007374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260835.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 400007374 is about 20000.1843491504. The cubic root of 400007374 is about 736.8108273750.

Adding to 400007374 its reverse (473700004), we get a palindrome (873707378).

It can be divided in two parts, 40000 and 7374, that added together give a palindrome (47374).

The spelling of 400007374 in words is "four hundred million, seven thousand, three hundred seventy-four".