40298979630 has 64 divisors (see below), whose sum is σ = 119036994048. Its totient is φ = 8502641280.

The previous prime is 40298979593. The next prime is 40298979647. The reversal of 40298979630 is 3697989204.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7378036 + ... + 7383495.

It is an arithmetic number, because the mean of its divisors is an integer number (1859953032).

Almost surely, 2^40298979630 is an apocalyptic number.

40298979630 is an abundant number, since it is smaller than the sum of its proper divisors (78738014418).

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

40298979630 is a wasteful number, since it uses less digits than its factorization.

40298979630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14761561.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 40298979630 in words is "forty billion, two hundred ninety-eight million, nine hundred seventy-nine thousand, six hundred thirty".