1240473951 has 12 divisors (see below), whose sum is σ = 1840223112. Its totient is φ = 804631536.

The previous prime is 1240473943. The next prime is 1240474051. The reversal of 1240473951 is 1593740421.

It is not a de Polignac number, because 1240473951 - 2³ = 1240473943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240473911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1862241 + ... + 1862906.

It is an arithmetic number, because the mean of its divisors is an integer number (153351926).

Almost surely, 2^1240473951 is an apocalyptic number.

1240473951 is a deficient number, since it is larger than the sum of its proper divisors (599749161).

1240473951 is a wasteful number, since it uses less digits than its factorization.

1240473951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725190 (or 3725187 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1240473951 is about 35220.3627323740. The cubic root of 1240473951 is about 1074.4739307389.

The spelling of 1240473951 in words is "one billion, two hundred forty million, four hundred seventy-three thousand, nine hundred fifty-one".