1240263464 has 32 divisors (see below), whose sum is σ = 2543032800. Its totient is φ = 562393920.

The previous prime is 1240263457. The next prime is 1240263481. The reversal of 1240263464 is 4643620421.

It is a self number, because there is not a number n which added to its sum of digits gives 1240263464.

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, 20054 + ... + 53690.

It is an arithmetic number, because the mean of its divisors is an integer number (79469775).

Almost surely, 2^1240263464 is an apocalyptic number.

It is an amenable number.

1240263464 is an abundant number, since it is smaller than the sum of its proper divisors (1302769336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240263464 is a wasteful number, since it uses less digits than its factorization.

1240263464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34073 (or 34069 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 1240263464 is about 35217.3744620464. The cubic root of 1240263464 is about 1074.4131540798.

Adding to 1240263464 its reverse (4643620421), we get a palindrome (5883883885).

The spelling of 1240263464 in words is "one billion, two hundred forty million, two hundred sixty-three thousand, four hundred sixty-four".