40814940 has 24 divisors (see below), whose sum is σ = 114282000. Its totient is φ = 10883968.

The previous prime is 40814933. The next prime is 40814947. The reversal of 40814940 is 4941804.

It is an interprime number because it is at equal distance from previous prime (40814933) and next prime (40814947).

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 = 40814898 and 40814907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40814947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340065 + ... + 340184.

It is an arithmetic number, because the mean of its divisors is an integer number (4761750).

Almost surely, 2^40814940 is an apocalyptic number.

It is an amenable number.

40814940 is an abundant number, since it is smaller than the sum of its proper divisors (73467060).

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

40814940 is a wasteful number, since it uses less digits than its factorization.

40814940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680261 (or 680259 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40814940 is about 6388.6571358933. The cubic root of 40814940 is about 344.3021390031.

The spelling of 40814940 in words is "forty million, eight hundred fourteen thousand, nine hundred forty".