40613020 has 48 divisors (see below), whose sum is σ = 98219520. Its totient is φ = 13817664.

The previous prime is 40613011. The next prime is 40613057. The reversal of 40613020 is 2031604.

It is a junction number, because it is equal to n+sod(n) for n = 40612985 and 40613003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18417 + ... + 20503.

It is an arithmetic number, because the mean of its divisors is an integer number (2046240).

Almost surely, 2^40613020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40613020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49109760).

40613020 is an abundant number, since it is smaller than the sum of its proper divisors (57606500).

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

40613020 is a wasteful number, since it uses less digits than its factorization.

40613020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40613020 is about 6372.8345341771. The cubic root of 40613020 is about 343.7334220104.

Adding to 40613020 its reverse (2031604), we get a palindrome (42644624).

The spelling of 40613020 in words is "forty million, six hundred thirteen thousand, twenty".