1240262045 has 8 divisors (see below), whose sum is σ = 1623615840. Its totient is φ = 902008720.

The previous prime is 1240262041. The next prime is 1240262057. The reversal of 1240262045 is 5402620421.

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

It is not a de Polignac number, because 1240262045 - 2² = 1240262041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240262041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11275055 + ... + 11275164.

It is an arithmetic number, because the mean of its divisors is an integer number (202951980).

Almost surely, 2^1240262045 is an apocalyptic number.

It is an amenable number.

1240262045 is a deficient number, since it is larger than the sum of its proper divisors (383353795).

1240262045 is a wasteful number, since it uses less digits than its factorization.

1240262045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22550235.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1240262045 is about 35217.3543157347. The cubic root of 1240262045 is about 1074.4127443301.

Adding to 1240262045 its reverse (5402620421), we get a palindrome (6642882466).

It can be divided in two parts, 12402 and 62045, that added together give a palindrome (74447).

The spelling of 1240262045 in words is "one billion, two hundred forty million, two hundred sixty-two thousand, forty-five".