400742700 has 72 divisors (see below), whose sum is σ = 1227702672. Its totient is φ = 100577280.

The previous prime is 400742689. The next prime is 400742707. The reversal of 400742700 is 7247004.

It is not an unprimeable number, because it can be changed into a prime (400742707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34189 + ... + 44388.

It is an arithmetic number, because the mean of its divisors is an integer number (17051426).

Almost surely, 2^400742700 is an apocalyptic number.

It is an amenable number.

400742700 is an abundant number, since it is smaller than the sum of its proper divisors (826959972).

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

400742700 is a wasteful number, since it uses less digits than its factorization.

400742700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78611 (or 78604 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 400742700 is about 20018.5588891908. The cubic root of 400742700 is about 737.2620394784.

Adding to 400742700 its reverse (7247004), we get a palindrome (407989704).

The spelling of 400742700 in words is "four hundred million, seven hundred forty-two thousand, seven hundred".