740040423981 has 16 divisors (see below), whose sum is σ = 1039261118400. Its totient is φ = 467120400768.

The previous prime is 740040423979. The next prime is 740040424003. The reversal of 740040423981 is 189324040047.

It is not a de Polignac number, because 740040423981 - 2¹ = 740040423979 is a prime.

It is a super-2 number, since 2×740040423981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740040423901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3701056 + ... + 3895881.

It is an arithmetic number, because the mean of its divisors is an integer number (64953819900).

Almost surely, 2^740040423981 is an apocalyptic number.

It is an amenable number.

740040423981 is a deficient number, since it is larger than the sum of its proper divisors (299220694419).

740040423981 is a wasteful number, since it uses less digits than its factorization.

740040423981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7598668.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 740040423981 in words is "seven hundred forty billion, forty million, four hundred twenty-three thousand, nine hundred eighty-one".