428747332 has 24 divisors (see below), whose sum is σ = 827735832. Its totient is φ = 193056000.

The previous prime is 428747317. The next prime is 428747357. The reversal of 428747332 is 233747824.

It can be written as a sum of positive squares in 4 ways, for example, as 50211396 + 378535936 = 7086^2 + 19456^2 .

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, 98419 + ... + 102682.

It is an arithmetic number, because the mean of its divisors is an integer number (34488993).

Almost surely, 2^428747332 is an apocalyptic number.

It is an amenable number.

428747332 is a deficient number, since it is larger than the sum of its proper divisors (398988500).

428747332 is a wasteful number, since it uses less digits than its factorization.

428747332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201159 (or 201157 counting only the distinct ones).

The product of its digits is 225792, while the sum is 40.

The square root of 428747332 is about 20706.2148158470. The cubic root of 428747332 is about 754.0505774176.

The spelling of 428747332 in words is "four hundred twenty-eight million, seven hundred forty-seven thousand, three hundred thirty-two".