40348015 has 4 divisors (see below), whose sum is σ = 48417624. Its totient is φ = 32278408.

The previous prime is 40348013. The next prime is 40348037. The reversal of 40348015 is 51084304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40348015 - 2¹ = 40348013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40348013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4034797 + ... + 4034806.

It is an arithmetic number, because the mean of its divisors is an integer number (12104406).

Almost surely, 2^40348015 is an apocalyptic number.

40348015 is a deficient number, since it is larger than the sum of its proper divisors (8069609).

40348015 is an equidigital number, since it uses as much as digits as its factorization.

40348015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8069608.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40348015 is about 6352.0087373995. The cubic root of 40348015 is about 342.9841555295.

The spelling of 40348015 in words is "forty million, three hundred forty-eight thousand, fifteen".