40613380 has 12 divisors (see below), whose sum is σ = 85288140. Its totient is φ = 16245344.

The previous prime is 40613341. The next prime is 40613381. The reversal of 40613380 is 8331604.

It can be written as a sum of positive squares in 2 ways, for example, as 26460736 + 14152644 = 5144^2 + 3762^2 .

It is not an unprimeable number, because it can be changed into a prime (40613381) 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, 1015315 + ... + 1015354.

It is an arithmetic number, because the mean of its divisors is an integer number (7107345).

Almost surely, 2^40613380 is an apocalyptic number.

It is an amenable number.

40613380 is an abundant number, since it is smaller than the sum of its proper divisors (44674760).

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

40613380 is a wasteful number, since it uses less digits than its factorization.

40613380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030678 (or 2030676 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40613380 is about 6372.8627790029. The cubic root of 40613380 is about 343.7344376426.

Adding to 40613380 its reverse (8331604), we get a palindrome (48944984).

It can be divided in two parts, 4061 and 3380, that multiplied together give a triangular number (13726180 = T₅₂₃₉).

The spelling of 40613380 in words is "forty million, six hundred thirteen thousand, three hundred eighty".