1349222740 has 24 divisors (see below), whose sum is σ = 2835924840. Its totient is φ = 539202048.

The previous prime is 1349222729. The next prime is 1349222753. The reversal of 1349222740 is 472229431.

It can be written as a sum of positive squares in 4 ways, for example, as 29789764 + 1319432976 = 5458^2 + 36324^2 .

It is a super-3 number, since 3×1349222740³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1349222696 and 1349222705.

It is a congruent number.

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, 7297 + ... + 52456.

It is an arithmetic number, because the mean of its divisors is an integer number (118163535).

Almost surely, 2^1349222740 is an apocalyptic number.

1349222740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1349222740 is an abundant number, since it is smaller than the sum of its proper divisors (1486702100).

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

1349222740 is a wasteful number, since it uses less digits than its factorization.

1349222740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60891 (or 60889 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1349222740 is about 36731.7674499880. The cubic root of 1349222740 is about 1104.9973014410.

The spelling of 1349222740 in words is "one billion, three hundred forty-nine million, two hundred twenty-two thousand, seven hundred forty".