428340833415 has 24 divisors (see below), whose sum is σ = 809953576848. Its totient is φ = 207680403840.

The previous prime is 428340833407. The next prime is 428340833423. The reversal of 428340833415 is 514338043824.

428340833415 is a `hidden beast` number, since 42 + 83 + 40 + 83 + 3 + 415 = 666.

It is an interprime number because it is at equal distance from previous prime (428340833407) and next prime (428340833423).

It is not a de Polignac number, because 428340833415 - 2³ = 428340833407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432667014 + ... + 432668003.

It is an arithmetic number, because the mean of its divisors is an integer number (33748065702).

Almost surely, 2^428340833415 is an apocalyptic number.

428340833415 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

428340833415 is a deficient number, since it is larger than the sum of its proper divisors (381612743433).

428340833415 is a wasteful number, since it uses less digits than its factorization.

428340833415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865335039 (or 865335036 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 428340833415 in words is "four hundred twenty-eight billion, three hundred forty million, eight hundred thirty-three thousand, four hundred fifteen".