40745619 has 8 divisors (see below), whose sum is σ = 60363920. Its totient is φ = 27163728.

The previous prime is 40745597. The next prime is 40745641. The reversal of 40745619 is 91654704.

It is an interprime number because it is at equal distance from previous prime (40745597) and next prime (40745641).

It is not a de Polignac number, because 40745619 - 2⁵ = 40745587 is a prime.

It is a super-2 number, since 2×40745619² = 3320410935386322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40745669) 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, 754522 + ... + 754575.

It is an arithmetic number, because the mean of its divisors is an integer number (7545490).

Almost surely, 2^40745619 is an apocalyptic number.

40745619 is a deficient number, since it is larger than the sum of its proper divisors (19618301).

40745619 is a wasteful number, since it uses less digits than its factorization.

40745619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509106 (or 1509100 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 40745619 is about 6383.2295117754. The cubic root of 40745619 is about 344.1071050798.

The spelling of 40745619 in words is "forty million, seven hundred forty-five thousand, six hundred nineteen".