1428585407 has 8 divisors (see below), whose sum is σ = 1493821440. Its totient is φ = 1363609720.

The previous prime is 1428585401. The next prime is 1428585449. The reversal of 1428585407 is 7045858241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1428585407 - 2⁶ = 1428585343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428585401) 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, 53819 + ... + 75852.

It is an arithmetic number, because the mean of its divisors is an integer number (186727680).

Almost surely, 2^1428585407 is an apocalyptic number.

1428585407 is a deficient number, since it is larger than the sum of its proper divisors (65236033).

1428585407 is a wasteful number, since it uses less digits than its factorization.

1428585407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130173.

The product of its (nonzero) digits is 358400, while the sum is 44.

The square root of 1428585407 is about 37796.6322176990. The cubic root of 1428585407 is about 1126.2515538393.

The spelling of 1428585407 in words is "one billion, four hundred twenty-eight million, five hundred eighty-five thousand, four hundred seven".