40294779 has 8 divisors (see below), whose sum is σ = 61401600. Its totient is φ = 23025576.

The previous prime is 40294769. The next prime is 40294789. The reversal of 40294779 is 97749204.

It is an interprime number because it is at equal distance from previous prime (40294769) and next prime (40294789).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40294779 - 2⁵ = 40294747 is a prime.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 40294779.

It is not an unprimeable number, because it can be changed into a prime (40294729) 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, 959379 + ... + 959420.

It is an arithmetic number, because the mean of its divisors is an integer number (7675200).

Almost surely, 2^40294779 is an apocalyptic number.

40294779 is a deficient number, since it is larger than the sum of its proper divisors (21106821).

40294779 is a wasteful number, since it uses less digits than its factorization.

40294779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918809.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 40294779 is about 6347.8168688140. The cubic root of 40294779 is about 342.8332423568.

The spelling of 40294779 in words is "forty million, two hundred ninety-four thousand, seven hundred seventy-nine".