40345560 has 64 divisors (see below), whose sum is σ = 134488800. Its totient is φ = 10758528.

The previous prime is 40345559. The next prime is 40345579. The reversal of 40345560 is 6554304.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17599 + ... + 19758.

Almost surely, 2^40345560 is an apocalyptic number.

40345560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40345560 is an abundant number, since it is smaller than the sum of its proper divisors (94143240).

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

40345560 is a wasteful number, since it uses less digits than its factorization.

40345560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37377 (or 37367 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40345560 is about 6351.8154885041. The cubic root of 40345560 is about 342.9771990272.

Adding to 40345560 its reverse (6554304), we get a palindrome (46899864).

The spelling of 40345560 in words is "forty million, three hundred forty-five thousand, five hundred sixty".