40744380 has 48 divisors (see below), whose sum is σ = 114426144. Its totient is φ = 10832640.

The previous prime is 40744373. The next prime is 40744381. The reversal of 40744380 is 8344704.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40744381) 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, 24454 + ... + 26066.

It is an arithmetic number, because the mean of its divisors is an integer number (2383878).

Almost surely, 2^40744380 is an apocalyptic number.

It is an amenable number.

40744380 is an abundant number, since it is smaller than the sum of its proper divisors (73681764).

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

40744380 is a wasteful number, since it uses less digits than its factorization.

40744380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2044 counting only the distinct ones).

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

The square root of 40744380 is about 6383.1324598507. The cubic root of 40744380 is about 344.1036171546.

The spelling of 40744380 in words is "forty million, seven hundred forty-four thousand, three hundred eighty".