1219460740 has 24 divisors (see below), whose sum is σ = 2563064280. Its totient is φ = 487365888.

The previous prime is 1219460707. The next prime is 1219460743. The reversal of 1219460740 is 470649121.

It can be written as a sum of positive squares in 4 ways, for example, as 416078404 + 803382336 = 20398^2 + 28344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1219460696 and 1219460705.

It is not an unprimeable number, because it can be changed into a prime (1219460743) 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, 1695 + ... + 49414.

It is an arithmetic number, because the mean of its divisors is an integer number (106794345).

Almost surely, 2^1219460740 is an apocalyptic number.

1219460740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1219460740 is an abundant number, since it is smaller than the sum of its proper divisors (1343603540).

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

1219460740 is a wasteful number, since it uses less digits than its factorization.

1219460740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52311 (or 52309 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1219460740 is about 34920.7780554787. The cubic root of 1219460740 is about 1068.3722710609.

The spelling of 1219460740 in words is "one billion, two hundred nineteen million, four hundred sixty thousand, seven hundred forty".