400602260 has 24 divisors (see below), whose sum is σ = 846134856. Its totient is φ = 159313280.

The previous prime is 400602221. The next prime is 400602277. The reversal of 400602260 is 62206004.

It can be written as a sum of positive squares in 4 ways, for example, as 191047684 + 209554576 = 13822^2 + 14476^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54431 + ... + 61350.

It is an arithmetic number, because the mean of its divisors is an integer number (35255619).

Almost surely, 2^400602260 is an apocalyptic number.

It is an amenable number.

400602260 is an abundant number, since it is smaller than the sum of its proper divisors (445532596).

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

400602260 is a wasteful number, since it uses less digits than its factorization.

400602260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115963 (or 115961 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 400602260 is about 20015.0508368078. The cubic root of 400602260 is about 737.1759050931.

Adding to 400602260 its reverse (62206004), we get a palindrome (462808264).

The spelling of 400602260 in words is "four hundred million, six hundred two thousand, two hundred sixty".