40671240 has 32 divisors (see below), whose sum is σ = 122014080. Its totient is φ = 10845632.

The previous prime is 40671217. The next prime is 40671263. The reversal of 40671240 is 4217604.

It is an interprime number because it is at equal distance from previous prime (40671217) and next prime (40671263).

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 40671240.

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, 169344 + ... + 169583.

It is an arithmetic number, because the mean of its divisors is an integer number (3812940).

Almost surely, 2^40671240 is an apocalyptic number.

40671240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40671240 is an abundant number, since it is smaller than the sum of its proper divisors (81342840).

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

40671240 is a wasteful number, since it uses less digits than its factorization.

40671240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338941 (or 338937 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 40671240 is about 6377.4007244331. The cubic root of 40671240 is about 343.8975943601.

Adding to 40671240 its reverse (4217604), we get a palindrome (44888844).

The spelling of 40671240 in words is "forty million, six hundred seventy-one thousand, two hundred forty".