748209990 has 32 divisors (see below), whose sum is σ = 1958950656. Its totient is φ = 181384160.

The previous prime is 748209977. The next prime is 748210007. The reversal of 748209990 is 99902847.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1133322 + ... + 1133981.

It is an arithmetic number, because the mean of its divisors is an integer number (61217208).

Almost surely, 2^748209990 is an apocalyptic number.

748209990 is an abundant number, since it is smaller than the sum of its proper divisors (1210740666).

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

748209990 is a wasteful number, since it uses less digits than its factorization.

748209990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267324.

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

The square root of 748209990 is about 27353.4273903655. The cubic root of 748209990 is about 907.8369063809.

The spelling of 748209990 in words is "seven hundred forty-eight million, two hundred nine thousand, nine hundred ninety".