40697123040 has 144 divisors (see below), whose sum is σ = 158718819168. Its totient is φ = 9302197248.

The previous prime is 40697123029. The next prime is 40697123053. The reversal of 40697123040 is 4032179604.

40697123040 is a `hidden beast` number, since 406 + 97 + 123 + 0 + 40 = 666.

40697123040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40697122986 and 40697123004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2008627 + ... + 2028786.

It is an arithmetic number, because the mean of its divisors is an integer number (1102214022).

Almost surely, 2^40697123040 is an apocalyptic number.

40697123040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40697123040 is an abundant number, since it is smaller than the sum of its proper divisors (118021696128).

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

40697123040 is a wasteful number, since it uses less digits than its factorization.

40697123040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037441 (or 4037430 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 40697123040 in words is "forty billion, six hundred ninety-seven million, one hundred twenty-three thousand, forty".