40780368 has 40 divisors (see below), whose sum is σ = 117056000. Its totient is φ = 13593312.

The previous prime is 40780361. The next prime is 40780381. The reversal of 40780368 is 86308704.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40780361) 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, 46768 + ... + 47631.

It is an arithmetic number, because the mean of its divisors is an integer number (2926400).

Almost surely, 2^40780368 is an apocalyptic number.

40780368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40780368 is an abundant number, since it is smaller than the sum of its proper divisors (76275632).

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

40780368 is a wasteful number, since it uses less digits than its factorization.

40780368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94416 (or 94404 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40780368 is about 6385.9508297512. The cubic root of 40780368 is about 344.2048986627.

The spelling of 40780368 in words is "forty million, seven hundred eighty thousand, three hundred sixty-eight".