40978395 has 12 divisors (see below), whose sum is σ = 71029296. Its totient is φ = 21855120.

The previous prime is 40978367. The next prime is 40978417. The reversal of 40978395 is 59387904.

It is not a de Polignac number, because 40978395 - 2⁸ = 40978139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 910631 = 40978395 / (4 + 0 + 9 + 7 + 8 + 3 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 40978395.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455271 + ... + 455360.

It is an arithmetic number, because the mean of its divisors is an integer number (5919108).

Almost surely, 2^40978395 is an apocalyptic number.

40978395 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40978395 is a deficient number, since it is larger than the sum of its proper divisors (30050901).

40978395 is a wasteful number, since it uses less digits than its factorization.

40978395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910642 (or 910639 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 40978395 is about 6401.4369480610. The cubic root of 40978395 is about 344.7611453204.

The spelling of 40978395 in words is "forty million, nine hundred seventy-eight thousand, three hundred ninety-five".