40879164240 has 400 divisors, whose sum is σ = 158251389120. Its totient is φ = 9719377920.

The previous prime is 40879164187. The next prime is 40879164307. The reversal of 40879164240 is 4246197804.

It is a super-2 number, since 2×40879164240² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 2083275 + ... + 2102805.

Almost surely, 2^40879164240 is an apocalyptic number.

40879164240 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 40879164240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79125694560).

40879164240 is an abundant number, since it is smaller than the sum of its proper divisors (117372224880).

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

40879164240 is a wasteful number, since it uses less digits than its factorization.

40879164240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19592 (or 19577 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 40879164240 in words is "forty billion, eight hundred seventy-nine million, one hundred sixty-four thousand, two hundred forty".