40898340 has 108 divisors (see below), whose sum is σ = 144343836. Its totient is φ = 9346176.

The previous prime is 40898339. The next prime is 40898359. The reversal of 40898340 is 4389804.

It can be written as a sum of positive squares in 2 ways, for example, as 12446784 + 28451556 = 3528^2 + 5334^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40898295 and 40898304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6502 + ... + 11138.

It is an arithmetic number, because the mean of its divisors is an integer number (1336517).

Almost surely, 2^40898340 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 40898340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72171918).

40898340 is an abundant number, since it is smaller than the sum of its proper divisors (103445496).

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

40898340 is a wasteful number, since it uses less digits than its factorization.

40898340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666 (or 4654 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40898340 is about 6395.1809982205. The cubic root of 40898340 is about 344.5364916058.

The spelling of 40898340 in words is "forty million, eight hundred ninety-eight thousand, three hundred forty".