988740 has 48 divisors (see below), whose sum is σ = 3077760. Its totient is φ = 263520.

The previous prime is 988733. The next prime is 988759. The reversal of 988740 is 47889.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 988695 and 988704.

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, 376 + ... + 1455.

It is an arithmetic number, because the mean of its divisors is an integer number (64120).

2⁹⁸⁸⁷⁴⁰ is an apocalyptic number.

988740 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

988740 is an abundant number, since it is smaller than the sum of its proper divisors (2089020).

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

988740 is a wasteful number, since it uses less digits than its factorization.

988740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 988740 is about 994.3540616903. The cubic root of 988740 is about 99.6232490363.

It can be divided in two parts, 988 and 740, that added together give a cube (1728 = 12³).

The spelling of 988740 in words is "nine hundred eighty-eight thousand, seven hundred forty".