40198401270 has 96 divisors (see below), whose sum is σ = 111253240800. Its totient is φ = 10041242112.

The previous prime is 40198401239. The next prime is 40198401277. The reversal of 40198401270 is 7210489104.

40198401270 is a `hidden beast` number, since 40 + 198 + 401 + 27 + 0 = 666.

40198401270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40198401270² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40198401277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20124 + ... + 284256.

It is an arithmetic number, because the mean of its divisors is an integer number (1158887925).

Almost surely, 2^40198401270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40198401270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55626620400).

40198401270 is an abundant number, since it is smaller than the sum of its proper divisors (71054839530).

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

40198401270 is a wasteful number, since it uses less digits than its factorization.

40198401270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264254 (or 264251 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 40198401270 in words is "forty billion, one hundred ninety-eight million, four hundred one thousand, two hundred seventy".