428342446 has 16 divisors (see below), whose sum is σ = 736625376. Its totient is φ = 182994336.

The previous prime is 428342437. The next prime is 428342461. The reversal of 428342446 is 644243824.

It is a congruent number.

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, 43821 + ... + 52696.

It is an arithmetic number, because the mean of its divisors is an integer number (46039086).

Almost surely, 2^428342446 is an apocalyptic number.

428342446 is a deficient number, since it is larger than the sum of its proper divisors (308282930).

428342446 is a wasteful number, since it uses less digits than its factorization.

428342446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96843.

The product of its digits is 147456, while the sum is 37.

The square root of 428342446 is about 20696.4355868348. The cubic root of 428342446 is about 753.8131410115.

The spelling of 428342446 in words is "four hundred twenty-eight million, three hundred forty-two thousand, four hundred forty-six".