40202043 has 24 divisors (see below), whose sum is σ = 64666368. Its totient is φ = 21759408.

The previous prime is 40202021. The next prime is 40202047. The reversal of 40202043 is 34020204.

It is a happy number.

It is not a de Polignac number, because 40202043 - 2⁶ = 40201979 is a prime.

It is a super-2 number, since 2×40202043² = 3232408522747698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40202047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4930 + ... + 10232.

It is an arithmetic number, because the mean of its divisors is an integer number (2694432).

Almost surely, 2^40202043 is an apocalyptic number.

40202043 is a deficient number, since it is larger than the sum of its proper divisors (24464325).

40202043 is a wasteful number, since it uses less digits than its factorization.

40202043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351 (or 5332 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40202043 is about 6340.5081026681. The cubic root of 40202043 is about 342.5700370031.

Adding to 40202043 its reverse (34020204), we get a palindrome (74222247).

The spelling of 40202043 in words is "forty million, two hundred two thousand, forty-three".