40078416 has 80 divisors (see below), whose sum is σ = 119599488. Its totient is φ = 11328000.

The previous prime is 40078411. The next prime is 40078417. The reversal of 40078416 is 61487004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40078411) 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, 33346 + ... + 34526.

Almost surely, 2^40078416 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 40078416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59799744).

40078416 is an abundant number, since it is smaller than the sum of its proper divisors (79521072).

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

40078416 is a wasteful number, since it uses less digits than its factorization.

40078416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 40078416 is about 6330.7516141450. The cubic root of 40078416 is about 342.2185259122.

The spelling of 40078416 in words is "forty million, seventy-eight thousand, four hundred sixteen".