1374691890 has 96 divisors (see below), whose sum is σ = 3905552448. Its totient is φ = 307612800.

The previous prime is 1374691889. The next prime is 1374691891. The reversal of 1374691890 is 981964731.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1374691889) and next prime (1374691891).

It is not an unprimeable number, because it can be changed into a prime (1374691891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32625 + ... + 61755.

It is an arithmetic number, because the mean of its divisors is an integer number (40682838).

Almost surely, 2^1374691890 is an apocalyptic number.

1374691890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1374691890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1952776224).

1374691890 is an abundant number, since it is smaller than the sum of its proper divisors (2530860558).

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

1374691890 is a wasteful number, since it uses less digits than its factorization.

1374691890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29176 (or 29165 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 1374691890 is about 37076.8376483216. The cubic root of 1374691890 is about 1111.9069808369.

The spelling of 1374691890 in words is "one billion, three hundred seventy-four million, six hundred ninety-one thousand, eight hundred ninety".