400710080 has 28 divisors (see below), whose sum is σ = 954191640. Its totient is φ = 160283904.

The previous prime is 400710073. The next prime is 400710083. The reversal of 400710080 is 80017004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400710083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625790 + ... + 626429.

Almost surely, 2^400710080 is an apocalyptic number.

400710080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400710080 is an abundant number, since it is smaller than the sum of its proper divisors (553481560).

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

400710080 is a wasteful number, since it uses less digits than its factorization.

400710080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252236 (or 1252226 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 400710080 is about 20017.7441286475. The cubic root of 400710080 is about 737.2420348385.

Adding to 400710080 its reverse (80017004), we get a palindrome (480727084).

The spelling of 400710080 in words is "four hundred million, seven hundred ten thousand, eighty".