1351874740 has 12 divisors (see below), whose sum is σ = 2838936996. Its totient is φ = 540749888.

The previous prime is 1351874737. The next prime is 1351874743. The reversal of 1351874740 is 474781531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1351874737) and next prime (1351874743).

It can be written as a sum of positive squares in 2 ways, for example, as 943349796 + 408524944 = 30714^2 + 20212^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1351874693 and 1351874702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351874743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33796849 + ... + 33796888.

It is an arithmetic number, because the mean of its divisors is an integer number (236578083).

Almost surely, 2^1351874740 is an apocalyptic number.

1351874740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351874740 is an abundant number, since it is smaller than the sum of its proper divisors (1487062256).

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

1351874740 is a wasteful number, since it uses less digits than its factorization.

1351874740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67593746 (or 67593744 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1351874740 is about 36767.8492707964. The cubic root of 1351874740 is about 1105.7208130454.

The spelling of 1351874740 in words is "one billion, three hundred fifty-one million, eight hundred seventy-four thousand, seven hundred forty".