428497426 has 16 divisors (see below), whose sum is σ = 735283584. Its totient is φ = 183462624.

The previous prime is 428497423. The next prime is 428497453. The reversal of 428497426 is 624794824.

It is a super-2 number, since 2×428497426² = 367220088177250952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428497423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486 + ... + 29278.

It is an arithmetic number, because the mean of its divisors is an integer number (45955224).

Almost surely, 2^428497426 is an apocalyptic number.

428497426 is a deficient number, since it is larger than the sum of its proper divisors (306786158).

428497426 is a wasteful number, since it uses less digits than its factorization.

428497426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29865.

The product of its digits is 774144, while the sum is 46.

The square root of 428497426 is about 20700.1793712035. The cubic root of 428497426 is about 753.9040432595.

The spelling of 428497426 in words is "four hundred twenty-eight million, four hundred ninety-seven thousand, four hundred twenty-six".