40540500 has 480 divisors, whose sum is σ = 177585408. Its totient is φ = 7776000.

The previous prime is 40540499. The next prime is 40540517. The reversal of 40540500 is 504504.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3118494 + ... + 3118506.

Almost surely, 2^40540500 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 40540500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88792704).

40540500 is an abundant number, since it is smaller than the sum of its proper divisors (137044908).

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

40540500 is a wasteful number, since it uses less digits than its factorization.

40540500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 40540500 is about 6367.1422160966. The cubic root of 40540500 is about 343.5287060543.

It can be divided in two parts, 405 and 40500, that multiplied together give a square (16402500 = 4050²).

The spelling of 40540500 in words is "forty million, five hundred forty thousand, five hundred".