742390180 has 72 divisors (see below), whose sum is σ = 1835604288. Its totient is φ = 251439552.

The previous prime is 742390151. The next prime is 742390247. The reversal of 742390180 is 81093247.

It is a super-2 number, since 2×742390180² = 1102286358720864800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76777 + ... + 85903.

It is an arithmetic number, because the mean of its divisors is an integer number (25494504).

Almost surely, 2^742390180 is an apocalyptic number.

742390180 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742390180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917802144).

742390180 is an abundant number, since it is smaller than the sum of its proper divisors (1093214108).

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

742390180 is a wasteful number, since it uses less digits than its factorization.

742390180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9233 (or 9224 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 742390180 is about 27246.8379816815. The cubic root of 742390180 is about 905.4769643753.

The spelling of 742390180 in words is "seven hundred forty-two million, three hundred ninety thousand, one hundred eighty".