40750320 has 160 divisors (see below), whose sum is σ = 140116032. Its totient is φ = 9732096.

The previous prime is 40750291. The next prime is 40750327. The reversal of 40750320 is 2305704.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40750327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115264 + ... + 115616.

Almost surely, 2^40750320 is an apocalyptic number.

40750320 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 40750320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70058016).

40750320 is an abundant number, since it is smaller than the sum of its proper divisors (99365712).

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

40750320 is a wasteful number, since it uses less digits than its factorization.

40750320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 40750320 is about 6383.5977316870. The cubic root of 40750320 is about 344.1203382841.

The spelling of 40750320 in words is "forty million, seven hundred fifty thousand, three hundred twenty".