738990 has 128 divisors (see below), whose sum is σ = 2488320. Its totient is φ = 152064.

The previous prime is 738989. The next prime is 739003. The reversal of 738990 is 99837.

It is a super-2 number, since 2×738990² = 1092212440200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 32119 + ... + 32141.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2⁷³⁸⁹⁹⁰ is an apocalyptic number.

738990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 738990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244160).

738990 is an abundant number, since it is smaller than the sum of its proper divisors (1749330).

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

738990 is a wasteful number, since it uses less digits than its factorization.

738990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 738990 is about 859.6452756806. The cubic root of 738990 is about 90.4092473637.

It can be divided in two parts, 738 and 990, that added together give a cube (1728 = 12³).

The spelling of 738990 in words is "seven hundred thirty-eight thousand, nine hundred ninety".