4012500 has 72 divisors (see below), whose sum is σ = 11811744. Its totient is φ = 1060000.

The previous prime is 4012499. The next prime is 4012507. The reversal of 4012500 is 52104.

It is a super-2 number, since 2×4012500² = 32200312500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37447 + ... + 37553.

It is an arithmetic number, because the mean of its divisors is an integer number (164052).

Almost surely, 2^4012500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5905872).

4012500 is an abundant number, since it is smaller than the sum of its proper divisors (7799244).

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

4012500 is a wasteful number, since it uses less digits than its factorization.

4012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 4012500 is about 2003.1225624010. The cubic root of 4012500 is about 158.9052875274.

Adding to 4012500 its reverse (52104), we get a palindrome (4064604).

The spelling of 4012500 in words is "four million, twelve thousand, five hundred".