402284550 has 24 divisors (see below), whose sum is σ = 997666056. Its totient is φ = 107275840.

The previous prime is 402284521. The next prime is 402284557. The reversal of 402284550 is 55482204.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402284557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1340799 + ... + 1341098.

It is an arithmetic number, because the mean of its divisors is an integer number (41569419).

Almost surely, 2^402284550 is an apocalyptic number.

402284550 is an abundant number, since it is smaller than the sum of its proper divisors (595381506).

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

402284550 is a wasteful number, since it uses less digits than its factorization.

402284550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681912 (or 2681907 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 402284550 is about 20057.0324325410. The cubic root of 402284550 is about 738.2063633653.

The spelling of 402284550 in words is "four hundred two million, two hundred eighty-four thousand, five hundred fifty".