40340373400 has 48 divisors (see below), whose sum is σ = 93833268840. Its totient is φ = 16128940800.

The previous prime is 40340373373. The next prime is 40340373401. The reversal of 40340373400 is 437304304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340373401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415495 + ... + 503305.

Almost surely, 2^40340373400 is an apocalyptic number.

40340373400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40340373400 is an abundant number, since it is smaller than the sum of its proper divisors (53492895440).

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

40340373400 is a wasteful number, since it uses less digits than its factorization.

40340373400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90124 (or 90115 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 28.

Adding to 40340373400 its reverse (437304304), we get a palindrome (40777677704).

The spelling of 40340373400 in words is "forty billion, three hundred forty million, three hundred seventy-three thousand, four hundred".