1940136254 has 32 divisors (see below), whose sum is σ = 3534425280. Its totient is φ = 779724288.

The previous prime is 1940136251. The next prime is 1940136269. The reversal of 1940136254 is 4526310491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940136251) 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, 51212 + ... + 80640.

It is an arithmetic number, because the mean of its divisors is an integer number (110450790).

Almost surely, 2^1940136254 is an apocalyptic number.

1940136254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1940136254 is a deficient number, since it is larger than the sum of its proper divisors (1594289026).

1940136254 is a wasteful number, since it uses less digits than its factorization.

1940136254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29732.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1940136254 is about 44046.9778077906. The cubic root of 1940136254 is about 1247.2229022717. Note that the first 3 decimals are identical.

It can be divided in two parts, 19401 and 36254, that added together give a palindrome (55655).

The spelling of 1940136254 in words is "one billion, nine hundred forty million, one hundred thirty-six thousand, two hundred fifty-four".