40154431770 has 24 divisors (see below), whose sum is σ = 104401522836. Its totient is φ = 10707848448.

The previous prime is 40154431747. The next prime is 40154431777. The reversal of 40154431770 is 7713445104.

40154431770 is a `hidden beast` number, since 4 + 0 + 154 + 431 + 7 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34098946281 + 6055485489 = 184659^2 + 77817^2 .

It is a super-2 number, since 2×40154431770² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40154431777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223080087 + ... + 223080266.

Almost surely, 2^40154431770 is an apocalyptic number.

40154431770 is an abundant number, since it is smaller than the sum of its proper divisors (64247091066).

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

40154431770 is a wasteful number, since it uses less digits than its factorization.

40154431770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446160366 (or 446160363 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

Adding to 40154431770 its reverse (7713445104), we get a palindrome (47867876874).

The spelling of 40154431770 in words is "forty billion, one hundred fifty-four million, four hundred thirty-one thousand, seven hundred seventy".