40778596 has 12 divisors (see below), whose sum is σ = 71415148. Its totient is φ = 20374272.

The previous prime is 40778587. The next prime is 40778623. The reversal of 40778596 is 69587704.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7485696 + 33292900 = 2736^2 + 5770^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4240 + ... + 9976.

Almost surely, 2^40778596 is an apocalyptic number.

It is an amenable number.

40778596 is a deficient number, since it is larger than the sum of its proper divisors (30636552).

40778596 is a wasteful number, since it uses less digits than its factorization.

40778596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518 (or 7516 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 40778596 is about 6385.8120861798. The cubic root of 40778596 is about 344.1999130946.

It can be divided in two parts, 407 and 78596, that added together give a triangular number (79003 = T₃₉₇).

The spelling of 40778596 in words is "forty million, seven hundred seventy-eight thousand, five hundred ninety-six".