40674869640 has 96 divisors (see below), whose sum is σ = 132357677400. Its totient is φ = 10833146880.

The previous prime is 40674869633. The next prime is 40674869657. The reversal of 40674869640 is 4696847604.

40674869640 is a `hidden beast` number, since 40 + 67 + 486 + 9 + 64 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 38855505924 + 1819363716 = 197118^2 + 42654^2 .

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, 221410 + ... + 361070.

Almost surely, 2^40674869640 is an apocalyptic number.

40674869640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40674869640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66178838700).

40674869640 is an abundant number, since it is smaller than the sum of its proper divisors (91682807760).

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

40674869640 is a wasteful number, since it uses less digits than its factorization.

40674869640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140487 (or 140480 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 40674869640 in words is "forty billion, six hundred seventy-four million, eight hundred sixty-nine thousand, six hundred forty".