402605112 has 128 divisors (see below), whose sum is σ = 1254274560. Its totient is φ = 104855040.

The previous prime is 402605107. The next prime is 402605123. The reversal of 402605112 is 211506204.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180162 + ... + 182382.

It is an arithmetic number, because the mean of its divisors is an integer number (9799020).

Almost surely, 2^402605112 is an apocalyptic number.

402605112 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402605112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627137280).

402605112 is an abundant number, since it is smaller than the sum of its proper divisors (851669448).

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

402605112 is a wasteful number, since it uses less digits than its factorization.

402605112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333 (or 2329 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 402605112 is about 20065.0221031525. The cubic root of 402605112 is about 738.4023921713.

The spelling of 402605112 in words is "four hundred two million, six hundred five thousand, one hundred twelve".