40203020 has 48 divisors (see below), whose sum is σ = 99193248. Its totient is φ = 13493760.

The previous prime is 40202947. The next prime is 40203029. The reversal of 40203020 is 2030204.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a junction number, because it is equal to n+sod(n) for n = 40202992 and 40203010.

It is not an unprimeable number, because it can be changed into a prime (40203029) 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, 4169 + ... + 9888.

It is an arithmetic number, because the mean of its divisors is an integer number (2066526).

Almost surely, 2^40203020 is an apocalyptic number.

It is an amenable number.

40203020 is an abundant number, since it is smaller than the sum of its proper divisors (58990228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40203020 is a wasteful number, since it uses less digits than its factorization.

40203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14090 (or 14088 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 40203020 is about 6340.5851464987. The cubic root of 40203020 is about 342.5728120546.

Adding to 40203020 its reverse (2030204), we get a palindrome (42233224).

The spelling of 40203020 in words is "forty million, two hundred three thousand, twenty".