748136394 has 24 divisors (see below), whose sum is σ = 1621465092. Its totient is φ = 249301440.

The previous prime is 748136371. The next prime is 748136401. The reversal of 748136394 is 493631847.

748136394 is a `hidden beast` number, since 7 + 4 + 8 + 1 + 3 + 639 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 688275225 + 59861169 = 26235^2 + 7737^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112342 + ... + 118814.

Almost surely, 2^748136394 is an apocalyptic number.

748136394 is an abundant number, since it is smaller than the sum of its proper divisors (873328698).

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

748136394 is a wasteful number, since it uses less digits than its factorization.

748136394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12902 (or 12899 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 748136394 is about 27352.0820779699. The cubic root of 748136394 is about 907.8071396235.

The spelling of 748136394 in words is "seven hundred forty-eight million, one hundred thirty-six thousand, three hundred ninety-four".