402028760 has 64 divisors (see below), whose sum is σ = 1046304000. Its totient is φ = 136169856.

The previous prime is 402028751. The next prime is 402028811. The reversal of 402028760 is 67820204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14591 + ... + 31889.

It is an arithmetic number, because the mean of its divisors is an integer number (16348500).

Almost surely, 2^402028760 is an apocalyptic number.

402028760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402028760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523152000).

402028760 is an abundant number, since it is smaller than the sum of its proper divisors (644275240).

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

402028760 is a wasteful number, since it uses less digits than its factorization.

402028760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17400 (or 17396 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 402028760 is about 20050.6548521488. The cubic root of 402028760 is about 738.0498689626.

Adding to 402028760 its reverse (67820204), we get a palindrome (469848964).

The spelling of 402028760 in words is "four hundred two million, twenty-eight thousand, seven hundred sixty".