428545405 has 16 divisors (see below), whose sum is σ = 526406400. Its totient is φ = 334827648.

The previous prime is 428545373. The next prime is 428545423. The reversal of 428545405 is 504545824.

It is a cyclic number.

It is not a de Polignac number, because 428545405 - 2⁵ = 428545373 is a prime.

It is a super-2 number, since 2×428545405² = 367302328293228050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31896 + ... + 43294.

It is an arithmetic number, because the mean of its divisors is an integer number (32900400).

Almost surely, 2^428545405 is an apocalyptic number.

It is an amenable number.

428545405 is a deficient number, since it is larger than the sum of its proper divisors (97860995).

428545405 is a wasteful number, since it uses less digits than its factorization.

428545405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11580.

The product of its (nonzero) digits is 128000, while the sum is 37.

The square root of 428545405 is about 20701.3382417659. The cubic root of 428545405 is about 753.9321805052.

The spelling of 428545405 in words is "four hundred twenty-eight million, five hundred forty-five thousand, four hundred five".