40619693 has 2 divisors, whose sum is σ = 40619694. Its totient is φ = 40619692.

The previous prime is 40619687. The next prime is 40619699. The reversal of 40619693 is 39691604.

It is a balanced prime because it is at equal distance from previous prime (40619687) and next prime (40619699).

It can be written as a sum of positive squares in only one way, i.e., 38775529 + 1844164 = 6227^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 40619693 - 2⁶ = 40619629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40619699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20309846 + 20309847.

It is an arithmetic number, because the mean of its divisors is an integer number (20309847).

Almost surely, 2^40619693 is an apocalyptic number.

It is an amenable number.

40619693 is a deficient number, since it is larger than the sum of its proper divisors (1).

40619693 is an equidigital number, since it uses as much as digits as its factorization.

40619693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 40619693 is about 6373.3580630622. The cubic root of 40619693 is about 343.7522469054.

The spelling of 40619693 in words is "forty million, six hundred nineteen thousand, six hundred ninety-three".