40007126 has 4 divisors (see below), whose sum is σ = 60010692. Its totient is φ = 20003562.

The previous prime is 40007113. The next prime is 40007129. The reversal of 40007126 is 62170004.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 40007098 and 40007107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001780 + ... + 10001783.

It is an arithmetic number, because the mean of its divisors is an integer number (15002673).

Almost surely, 2^40007126 is an apocalyptic number.

40007126 is a deficient number, since it is larger than the sum of its proper divisors (20003566).

40007126 is a wasteful number, since it uses less digits than its factorization.

40007126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003565.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 40007126 is about 6325.1186550135. The cubic root of 40007126 is about 342.0154969438.

The spelling of 40007126 in words is "forty million, seven thousand, one hundred twenty-six".