402783360 has 256 divisors, whose sum is σ = 1532252160. Its totient is φ = 87994368.

The previous prime is 402783331. The next prime is 402783361. The reversal of 402783360 is 63387204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402783361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308469 + ... + 309771.

It is an arithmetic number, because the mean of its divisors is an integer number (5985360).

Almost surely, 2^402783360 is an apocalyptic number.

402783360 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 402783360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (766126080).

402783360 is an abundant number, since it is smaller than the sum of its proper divisors (1129468800).

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

402783360 is a wasteful number, since it uses less digits than its factorization.

402783360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 402783360 is about 20069.4633710022. The cubic root of 402783360 is about 738.5113486701.

The spelling of 402783360 in words is "four hundred two million, seven hundred eighty-three thousand, three hundred sixty".