742705194 has 64 divisors (see below), whose sum is σ = 1856305152. Its totient is φ = 192456000.

The previous prime is 742705177. The next prime is 742705241. The reversal of 742705194 is 491507247.

It is a super-2 number, since 2×742705194² = 1103222010389155272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223344 + ... + 226644.

It is an arithmetic number, because the mean of its divisors is an integer number (29004768).

Almost surely, 2^742705194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742705194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928152576).

742705194 is an abundant number, since it is smaller than the sum of its proper divisors (1113599958).

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

742705194 is a wasteful number, since it uses less digits than its factorization.

742705194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 742705194 is about 27252.6181127612. The cubic root of 742705194 is about 905.6050181460.

The spelling of 742705194 in words is "seven hundred forty-two million, seven hundred five thousand, one hundred ninety-four".