1374156738 has 48 divisors (see below), whose sum is σ = 3162964896. Its totient is φ = 446873760.

The previous prime is 1374156737. The next prime is 1374156739. The reversal of 1374156738 is 8376514731.

1374156738 is a `hidden beast` number, since 13 + 7 + 41 + 567 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (1374156737) and next prime (1374156739).

It is a junction number, because it is equal to n+sod(n) for n = 1374156693 and 1374156702.

It is not an unprimeable number, because it can be changed into a prime (1374156737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14556 + ... + 54407.

It is an arithmetic number, because the mean of its divisors is an integer number (65895102).

Almost surely, 2^1374156738 is an apocalyptic number.

1374156738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1374156738 is an abundant number, since it is smaller than the sum of its proper divisors (1788808158).

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

1374156738 is an equidigital number, since it uses as much as digits as its factorization.

1374156738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69021 (or 69009 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 1374156738 is about 37069.6201491194. The cubic root of 1374156738 is about 1111.7626778408.

The spelling of 1374156738 in words is "one billion, three hundred seventy-four million, one hundred fifty-six thousand, seven hundred thirty-eight".