40739655 has 16 divisors (see below), whose sum is σ = 71109504. Its totient is φ = 19752480.

The previous prime is 40739653. The next prime is 40739659. The reversal of 40739655 is 55693704.

It is not a de Polignac number, because 40739655 - 2¹ = 40739653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40739651) 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, 123289 + ... + 123618.

It is an arithmetic number, because the mean of its divisors is an integer number (4444344).

Almost surely, 2^40739655 is an apocalyptic number.

40739655 is a deficient number, since it is larger than the sum of its proper divisors (30369849).

40739655 is a wasteful number, since it uses less digits than its factorization.

40739655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246926.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 40739655 is about 6382.7623330342. The cubic root of 40739655 is about 344.0903150955.

The spelling of 40739655 in words is "forty million, seven hundred thirty-nine thousand, six hundred fifty-five".