40130787444 has 24 divisors (see below), whose sum is σ = 102151095648. Its totient is φ = 12160844640.

The previous prime is 40130787443. The next prime is 40130787533. The reversal of 40130787444 is 44478703104.

It is a happy number.

It is a super-2 number, since 2×40130787444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40130787396 and 40130787405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40130787443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152010427 + ... + 152010690.

It is an arithmetic number, because the mean of its divisors is an integer number (4256295652).

Almost surely, 2^40130787444 is an apocalyptic number.

40130787444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40130787444 is an abundant number, since it is smaller than the sum of its proper divisors (62020308204).

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

40130787444 is a wasteful number, since it uses less digits than its factorization.

40130787444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304021135 (or 304021133 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 40130787444 in words is "forty billion, one hundred thirty million, seven hundred eighty-seven thousand, four hundred forty-four".