40498380 has 144 divisors (see below), whose sum is σ = 137408544. Its totient is φ = 9953280.

The previous prime is 40498379. The next prime is 40498391. The reversal of 40498380 is 8389404.

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

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, 62860 + ... + 63500.

It is an arithmetic number, because the mean of its divisors is an integer number (954226).

Almost surely, 2^40498380 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 40498380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68704272).

40498380 is an abundant number, since it is smaller than the sum of its proper divisors (96910164).

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

40498380 is a wasteful number, since it uses less digits than its factorization.

40498380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 664 counting only the distinct ones).

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

The square root of 40498380 is about 6363.8337501855. The cubic root of 40498380 is about 343.4096938480.

The spelling of 40498380 in words is "forty million, four hundred ninety-eight thousand, three hundred eighty".