749550290 has 32 divisors (see below), whose sum is σ = 1372747824. Its totient is φ = 294630400.

The previous prime is 749550287. The next prime is 749550293. The reversal of 749550290 is 92055947.

It is an interprime number because it is at equal distance from previous prime (749550287) and next prime (749550293).

It can be written as a sum of positive squares in 8 ways, for example, as 388208209 + 361342081 = 19703^2 + 19009^2 .

It is not an unprimeable number, because it can be changed into a prime (749550293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135662 + ... + 141078.

Almost surely, 2^749550290 is an apocalyptic number.

749550290 is a deficient number, since it is larger than the sum of its proper divisors (623197534).

749550290 is a wasteful number, since it uses less digits than its factorization.

749550290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 749550290 is about 27377.9161003901. The cubic root of 749550290 is about 908.3786651524.

The spelling of 749550290 in words is "seven hundred forty-nine million, five hundred fifty thousand, two hundred ninety".