40906720 has 24 divisors (see below), whose sum is σ = 96642504. Its totient is φ = 16362624.

The previous prime is 40906711. The next prime is 40906729. The reversal of 40906720 is 2760904.

It is an interprime number because it is at equal distance from previous prime (40906711) and next prime (40906729).

It is a super-3 number, since 3×40906720³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40906729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127674 + ... + 127993.

It is an arithmetic number, because the mean of its divisors is an integer number (4026771).

Almost surely, 2^40906720 is an apocalyptic number.

40906720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40906720 is an abundant number, since it is smaller than the sum of its proper divisors (55735784).

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

40906720 is a wasteful number, since it uses less digits than its factorization.

40906720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255682 (or 255674 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40906720 is about 6395.8361454934. The cubic root of 40906720 is about 344.5600216450.

The spelling of 40906720 in words is "forty million, nine hundred six thousand, seven hundred twenty".