40670740 has 48 divisors (see below), whose sum is σ = 93703680. Its totient is φ = 14705280.

The previous prime is 40670737. The next prime is 40670753. The reversal of 40670740 is 4707604.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 40670699 and 40670708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48646 + ... + 49474.

It is an arithmetic number, because the mean of its divisors is an integer number (1952160).

Almost surely, 2^40670740 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 40670740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46851840).

40670740 is an abundant number, since it is smaller than the sum of its proper divisors (53032940).

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

40670740 is a wasteful number, since it uses less digits than its factorization.

40670740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 40670740 is about 6377.3615233888. The cubic root of 40670740 is about 343.8961850964.

The spelling of 40670740 in words is "forty million, six hundred seventy thousand, seven hundred forty".