40303029464840 has 32 divisors (see below), whose sum is σ = 90682178007960. Its totient is φ = 16121147481600.

The previous prime is 40303029464837. The next prime is 40303029464897. The reversal of 40303029464840 is 4846492030304.

It can be written as a sum of positive squares in 4 ways, for example, as 37994082356356 + 2308947108484 = 6163934^2 + 1519522^2 .

It is a super-2 number, since 2×40303029464840² (a number of 28 digits) contains 22 as substring.

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, 8871260 + ... + 12621620.

Almost surely, 2^{40303029464840} is an apocalyptic number.

40303029464840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40303029464840 is an abundant number, since it is smaller than the sum of its proper divisors (50379148543120).

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

40303029464840 is a wasteful number, since it uses less digits than its factorization.

40303029464840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019033 (or 4019029 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 47.

It can be divided in two parts, 40303029464 and 840, that added together give a palindrome (40303030304).

The spelling of 40303029464840 in words is "forty trillion, three hundred three billion, twenty-nine million, four hundred sixty-four thousand, eight hundred forty".