1742190138 has 96 divisors (see below), whose sum is σ = 4237833600. Its totient is φ = 513571968.

The previous prime is 1742190127. The next prime is 1742190139. The reversal of 1742190138 is 8310912471.

It is a happy number.

1742190138 is a `hidden beast` number, since 17 + 421 + 90 + 138 = 666.

It is not an unprimeable number, because it can be changed into a prime (1742190139) 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, 942331 + ... + 944177.

It is an arithmetic number, because the mean of its divisors is an integer number (44144100).

Almost surely, 2^1742190138 is an apocalyptic number.

1742190138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1742190138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2118916800).

1742190138 is an abundant number, since it is smaller than the sum of its proper divisors (2495643462).

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

1742190138 is a wasteful number, since it uses less digits than its factorization.

1742190138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2033 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1742190138 is about 41739.5512433950. The cubic root of 1742190138 is about 1203.2758036218.

The spelling of 1742190138 in words is "one billion, seven hundred forty-two million, one hundred ninety thousand, one hundred thirty-eight".