400740740734 has 8 divisors (see below), whose sum is σ = 601114408560. Its totient is φ = 200369271216.

The previous prime is 400740740717. The next prime is 400740740753. The reversal of 400740740734 is 437047047004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27247 + ... + 895669.

It is an arithmetic number, because the mean of its divisors is an integer number (75139301070).

Almost surely, 2^400740740734 is an apocalyptic number.

400740740734 is a deficient number, since it is larger than the sum of its proper divisors (200373667826).

400740740734 is a wasteful number, since it uses less digits than its factorization.

400740740734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099154.

The product of its (nonzero) digits is 263424, while the sum is 40.

Adding to 400740740734 its reverse (437047047004), we get a palindrome (837787787738).

The spelling of 400740740734 in words is "four hundred billion, seven hundred forty million, seven hundred forty thousand, seven hundred thirty-four".