1240892945 has 8 divisors (see below), whose sum is σ = 1567443840. Its totient is φ = 940466160.

The previous prime is 1240892929. The next prime is 1240893001. The reversal of 1240892945 is 5492980421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240892945 - 2⁴ = 1240892929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240892896 and 1240892905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6530921 + ... + 6531110.

It is an arithmetic number, because the mean of its divisors is an integer number (195930480).

Almost surely, 2^1240892945 is an apocalyptic number.

It is an amenable number.

1240892945 is a deficient number, since it is larger than the sum of its proper divisors (326550895).

1240892945 is a wasteful number, since it uses less digits than its factorization.

1240892945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13062055.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 1240892945 is about 35226.3104085568. The cubic root of 1240892945 is about 1074.5948918849.

The spelling of 1240892945 in words is "one billion, two hundred forty million, eight hundred ninety-two thousand, nine hundred forty-five".