40834740 has 48 divisors (see below), whose sum is σ = 115915968. Its totient is φ = 10738944.

The previous prime is 40834723. The next prime is 40834741. The reversal of 40834740 is 4743804.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40834698 and 40834707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40834741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282 + ... + 9041.

It is an arithmetic number, because the mean of its divisors is an integer number (2414916).

Almost surely, 2^40834740 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 40834740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57957984).

40834740 is an abundant number, since it is smaller than the sum of its proper divisors (75081228).

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

40834740 is a wasteful number, since it uses less digits than its factorization.

40834740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9408 (or 9406 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 40834740 is about 6390.2065694311. The cubic root of 40834740 is about 344.3578055497.

The spelling of 40834740 in words is "forty million, eight hundred thirty-four thousand, seven hundred forty".