40023247770 has 160 divisors (see below), whose sum is σ = 117529828416. Its totient is φ = 9692006400.

The previous prime is 40023247727. The next prime is 40023247787. The reversal of 40023247770 is 7774232004.

40023247770 is a `hidden beast` number, since 400 + 2 + 3 + 247 + 7 + 7 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10841625 + ... + 10845315.

Almost surely, 2^40023247770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40023247770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58764914208).

40023247770 is an abundant number, since it is smaller than the sum of its proper divisors (77506580646).

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

40023247770 is a wasteful number, since it uses less digits than its factorization.

40023247770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938 (or 4929 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

Adding to 40023247770 its reverse (7774232004), we get a palindrome (47797479774).

The spelling of 40023247770 in words is "forty billion, twenty-three million, two hundred forty-seven thousand, seven hundred seventy".