40061304 has 80 divisors (see below), whose sum is σ = 113125320. Its totient is φ = 13245120.

The previous prime is 40061297. The next prime is 40061311. The reversal of 40061304 is 40316004.

It is an interprime number because it is at equal distance from previous prime (40061297) and next prime (40061311).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 136582 + ... + 136874.

Almost surely, 2^40061304 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 40061304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56562660).

40061304 is an abundant number, since it is smaller than the sum of its proper divisors (73064016).

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

40061304 is a wasteful number, since it uses less digits than its factorization.

40061304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40061304 is about 6329.3999715613. The cubic root of 40061304 is about 342.1698140981.

Adding to 40061304 its reverse (40316004), we get a palindrome (80377308).

The spelling of 40061304 in words is "forty million, sixty-one thousand, three hundred four".