40030321253440 has 112 divisors (see below), whose sum is σ = 108942409699200. Its totient is φ = 13724335153152.

The previous prime is 40030321253423. The next prime is 40030321253471. The reversal of 40030321253440 is 4435212303004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×40030321253440² (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 15 ways as a sum of consecutive naturals, for example, 98107771 + ... + 98514949.

It is an arithmetic number, because the mean of its divisors is an integer number (972700086600).

Almost surely, 2^{40030321253440} is an apocalyptic number.

40030321253440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40030321253440 is an abundant number, since it is smaller than the sum of its proper divisors (68912088445760).

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

40030321253440 is a wasteful number, since it uses less digits than its factorization.

40030321253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451092 (or 451082 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 40030321253440 its reverse (4435212303004), we get a palindrome (44465533556444).

The spelling of 40030321253440 in words is "forty trillion, thirty billion, three hundred twenty-one million, two hundred fifty-three thousand, four hundred forty".