43542049 has 8 divisors (see below), whose sum is σ = 46660320. Its totient is φ = 40485696.

The previous prime is 43542043. The next prime is 43542089. The reversal of 43542049 is 94024534.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 43542049 - 2¹³ = 43533857 is a prime.

It is a super-2 number, since 2×43542049² = 3791820062236802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43542049.

It is not an unprimeable number, because it can be changed into a prime (43542043) 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, 14019 + ... + 16840.

It is an arithmetic number, because the mean of its divisors is an integer number (5832540).

Almost surely, 2^43542049 is an apocalyptic number.

It is an amenable number.

43542049 is a deficient number, since it is larger than the sum of its proper divisors (3118271).

43542049 is a wasteful number, since it uses less digits than its factorization.

43542049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30959.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 43542049 is about 6598.6399356231. The cubic root of 43542049 is about 351.8057667444.

The spelling of 43542049 in words is "forty-three million, five hundred forty-two thousand, forty-nine".