40927440 has 80 divisors (see below), whose sum is σ = 130991616. Its totient is φ = 10560000.

The previous prime is 40927433. The next prime is 40927457. The reversal of 40927440 is 4472904.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 40927398 and 40927407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4690 + ... + 10190.

Almost surely, 2^40927440 is an apocalyptic number.

40927440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40927440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65495808).

40927440 is an abundant number, since it is smaller than the sum of its proper divisors (90064176).

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

40927440 is a wasteful number, since it uses less digits than its factorization.

40927440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5548 (or 5542 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 40927440 is about 6397.4557442783. The cubic root of 40927440 is about 344.6181871379.

The spelling of 40927440 in words is "forty million, nine hundred twenty-seven thousand, four hundred forty".