40700520 has 192 divisors, whose sum is σ = 156349440. Its totient is φ = 8985600.

The previous prime is 40700509. The next prime is 40700549. The reversal of 40700520 is 2500704.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 40700493 and 40700502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77860 + ... + 78380.

It is an arithmetic number, because the mean of its divisors is an integer number (814320).

Almost surely, 2^40700520 is an apocalyptic number.

40700520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40700520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78174720).

40700520 is an abundant number, since it is smaller than the sum of its proper divisors (115648920).

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

40700520 is a wasteful number, since it uses less digits than its factorization.

40700520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 40700520 is about 6379.6959175183. The cubic root of 40700520 is about 343.9801007058.

The spelling of 40700520 in words is "forty million, seven hundred thousand, five hundred twenty".