40257670830 has 96 divisors (see below), whose sum is σ = 105947688960. Its totient is φ = 9784045440.

The previous prime is 40257670793. The next prime is 40257670841. The reversal of 40257670830 is 3807675204.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 350275 + ... + 450785.

It is an arithmetic number, because the mean of its divisors is an integer number (1103621760).

Almost surely, 2^40257670830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40257670830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52973844480).

40257670830 is an abundant number, since it is smaller than the sum of its proper divisors (65690018130).

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

40257670830 is a wasteful number, since it uses less digits than its factorization.

40257670830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100626 (or 100613 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 40257670830 in words is "forty billion, two hundred fifty-seven million, six hundred seventy thousand, eight hundred thirty".