40055719 has 24 divisors (see below), whose sum is σ = 47305440. Its totient is φ = 33802560.

The previous prime is 40055713. The next prime is 40055731. The reversal of 40055719 is 91755004.

It is not a de Polignac number, because 40055719 - 2⁹ = 40055207 is a prime.

It is a super-2 number, since 2×40055719² = 3208921249213922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055713) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102777 + ... + 103165.

It is an arithmetic number, because the mean of its divisors is an integer number (1971060).

Almost surely, 2^40055719 is an apocalyptic number.

40055719 is a deficient number, since it is larger than the sum of its proper divisors (7249721).

40055719 is a wasteful number, since it uses less digits than its factorization.

40055719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 40055719 is about 6328.9587611233. The cubic root of 40055719 is about 342.1539125753.

The spelling of 40055719 in words is "forty million, fifty-five thousand, seven hundred nineteen".