40340700 has 144 divisors (see below), whose sum is σ = 132213760. Its totient is φ = 10549440.

The previous prime is 40340669. The next prime is 40340701. The reversal of 40340700 is 704304.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180789 + ... + 181011.

Almost surely, 2^40340700 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 40340700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66106880).

40340700 is an abundant number, since it is smaller than the sum of its proper divisors (91873060).

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

40340700 is a wasteful number, since it uses less digits than its factorization.

40340700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 40340700 is about 6351.4329091946. The cubic root of 40340700 is about 342.9634268705.

The spelling of 40340700 in words is "forty million, three hundred forty thousand, seven hundred".