40726530 has 128 divisors (see below), whose sum is σ = 120234240. Its totient is φ = 9745920.

The previous prime is 40726513. The next prime is 40726531. The reversal of 40726530 is 3562704.

It is a happy number.

40726530 is a `hidden beast` number, since 4 + 0 + 7 + 2 + 653 + 0 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40726494 and 40726503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40726531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143769 + ... + 144051.

It is an arithmetic number, because the mean of its divisors is an integer number (939330).

Almost surely, 2^40726530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40726530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60117120).

40726530 is an abundant number, since it is smaller than the sum of its proper divisors (79507710).

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

40726530 is a wasteful number, since it uses less digits than its factorization.

40726530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 40726530 is about 6381.7340903551. The cubic root of 40726530 is about 344.0533595341.

The spelling of 40726530 in words is "forty million, seven hundred twenty-six thousand, five hundred thirty".