40213803 has 16 divisors (see below), whose sum is σ = 62436096. Its totient is φ = 22545120.

The previous prime is 40213801. The next prime is 40213819. The reversal of 40213803 is 30831204.

It is a happy number.

It is not a de Polignac number, because 40213803 - 2¹ = 40213801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 40213803.

It is not an unprimeable number, because it can be changed into a prime (40213801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16953 + ... + 19178.

It is an arithmetic number, because the mean of its divisors is an integer number (3902256).

Almost surely, 2^40213803 is an apocalyptic number.

40213803 is a deficient number, since it is larger than the sum of its proper divisors (22222293).

40213803 is a wasteful number, since it uses less digits than its factorization.

40213803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36194.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40213803 is about 6341.4354053321. The cubic root of 40213803 is about 342.6034368884.

The spelling of 40213803 in words is "forty million, two hundred thirteen thousand, eight hundred three".