40907040 has 48 divisors (see below), whose sum is σ = 128858688. Its totient is φ = 10908416.

The previous prime is 40907033. The next prime is 40907059. The reversal of 40907040 is 4070904.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40907040.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42132 + ... + 43091.

It is an arithmetic number, because the mean of its divisors is an integer number (2684556).

Almost surely, 2^40907040 is an apocalyptic number.

40907040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40907040 is an abundant number, since it is smaller than the sum of its proper divisors (87951648).

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

40907040 is a wasteful number, since it uses less digits than its factorization.

40907040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85241 (or 85233 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 40907040 is about 6395.8611617201. The cubic root of 40907040 is about 344.5609201031.

Adding to 40907040 its reverse (4070904), we get a palindrome (44977944).

The spelling of 40907040 in words is "forty million, nine hundred seven thousand, forty".