40247179 has 12 divisors (see below), whose sum is σ = 46953408. Its totient is φ = 34398000.

The previous prime is 40247161. The next prime is 40247191. The reversal of 40247179 is 97174204.

It is not a de Polignac number, because 40247179 - 2¹⁵ = 40214411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40247159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19654 + ... + 21604.

It is an arithmetic number, because the mean of its divisors is an integer number (3912784).

Almost surely, 2^40247179 is an apocalyptic number.

40247179 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

40247179 is a deficient number, since it is larger than the sum of its proper divisors (6706229).

40247179 is a wasteful number, since it uses less digits than its factorization.

40247179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 40247179 is about 6344.0664403835. The cubic root of 40247179 is about 342.6981934931.

Subtracting 40247179 from its reverse (97174204), we obtain a square (56927025 = 7545²).

The spelling of 40247179 in words is "forty million, two hundred forty-seven thousand, one hundred seventy-nine".