623142126 has 64 divisors (see below), whose sum is σ = 1465516800. Its totient is φ = 195719328.

The previous prime is 623142109. The next prime is 623142131. The reversal of 623142126 is 621241326.

623142126 is a `hidden beast` number, since 6 + 231 + 421 + 2 + 6 = 666.

It is a super-2 number, since 2×623142126² = 776612218391599752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 623142126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200581 + ... + 203663.

It is an arithmetic number, because the mean of its divisors is an integer number (22898700).

Almost surely, 2^623142126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623142126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732758400).

623142126 is an abundant number, since it is smaller than the sum of its proper divisors (842374674).

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

623142126 is a wasteful number, since it uses less digits than its factorization.

623142126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310 (or 3304 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 623142126 is about 24962.8148653152. The cubic root of 623142126 is about 854.1399538815.

The spelling of 623142126 in words is "six hundred twenty-three million, one hundred forty-two thousand, one hundred twenty-six".