428302344 has 16 divisors (see below), whose sum is σ = 1070755920. Its totient is φ = 142767440.

The previous prime is 428302339. The next prime is 428302349. The reversal of 428302344 is 443203824.

It is an interprime number because it is at equal distance from previous prime (428302339) and next prime (428302349).

It is not an unprimeable number, because it can be changed into a prime (428302349) 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, 8922942 + ... + 8922989.

It is an arithmetic number, because the mean of its divisors is an integer number (66922245).

Almost surely, 2^428302344 is an apocalyptic number.

It is an amenable number.

428302344 is an abundant number, since it is smaller than the sum of its proper divisors (642453576).

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

428302344 is a wasteful number, since it uses less digits than its factorization.

428302344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17845940 (or 17845936 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 428302344 is about 20695.4667499914. The cubic root of 428302344 is about 753.7896159416.

The spelling of 428302344 in words is "four hundred twenty-eight million, three hundred two thousand, three hundred forty-four".