40203051 has 16 divisors (see below), whose sum is σ = 61371648. Its totient is φ = 22932000.

The previous prime is 40203049. The next prime is 40203091. The reversal of 40203051 is 15030204.

It is not a de Polignac number, because 40203051 - 2¹ = 40203049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40203051.

It is not an unprimeable number, because it can be changed into a prime (40203041) 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, 13356 + ... + 16086.

It is an arithmetic number, because the mean of its divisors is an integer number (3835728).

Almost surely, 2^40203051 is an apocalyptic number.

40203051 is a deficient number, since it is larger than the sum of its proper divisors (21168597).

40203051 is a wasteful number, since it uses less digits than its factorization.

40203051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 40203051 is about 6340.5875910676. The cubic root of 40203051 is about 342.5729001056.

Adding to 40203051 its reverse (15030204), we get a palindrome (55233255).

The spelling of 40203051 in words is "forty million, two hundred three thousand, fifty-one".