123285470 has 96 divisors (see below), whose sum is σ = 285884640. Its totient is φ = 37847040.

The previous prime is 123285439. The next prime is 123285493. The reversal of 123285470 is 74582321.

It is a super-2 number, since 2×123285470² = 30398614226241800, 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 47 ways as a sum of consecutive naturals, for example, 479582 + ... + 479838.

It is an arithmetic number, because the mean of its divisors is an integer number (2977965).

Almost surely, 2^123285470 is an apocalyptic number.

123285470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123285470 is an abundant number, since it is smaller than the sum of its proper divisors (162599170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123285470 is a wasteful number, since it uses less digits than its factorization.

123285470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 123285470 is about 11103.3990291262. The cubic root of 123285470 is about 497.7034276612.

The spelling of 123285470 in words is "one hundred twenty-three million, two hundred eighty-five thousand, four hundred seventy".