428100436 has 12 divisors (see below), whose sum is σ = 775009620. Its totient is φ = 206669120.

The previous prime is 428100427. The next prime is 428100461. The reversal of 428100436 is 634001824.

It can be written as a sum of positive squares in 2 ways, for example, as 227708100 + 200392336 = 15090^2 + 14156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845145 + ... + 1845376.

It is an arithmetic number, because the mean of its divisors is an integer number (64584135).

Almost surely, 2^428100436 is an apocalyptic number.

It is an amenable number.

428100436 is a deficient number, since it is larger than the sum of its proper divisors (346909184).

428100436 is a wasteful number, since it uses less digits than its factorization.

428100436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690554 (or 3690552 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 428100436 is about 20690.5881018399. The cubic root of 428100436 is about 753.6711481676.

The spelling of 428100436 in words is "four hundred twenty-eight million, one hundred thousand, four hundred thirty-six".