1498478940 has 288 divisors, whose sum is σ = 5706215424. Its totient is φ = 322237440.

The previous prime is 1498478939. The next prime is 1498478941. The reversal of 1498478940 is 498748941.

It is an interprime number because it is at equal distance from previous prime (1498478939) and next prime (1498478941).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1498478941) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 577045 + ... + 579635.

It is an arithmetic number, because the mean of its divisors is an integer number (19813248).

Almost surely, 2^1498478940 is an apocalyptic number.

1498478940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1498478940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853107712).

1498478940 is an abundant number, since it is smaller than the sum of its proper divisors (4207736484).

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

1498478940 is a wasteful number, since it uses less digits than its factorization.

1498478940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639 (or 2625 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 1498478940 is about 38710.1916812614. The cubic root of 1498478940 is about 1144.3271830157.

The spelling of 1498478940 in words is "one billion, four hundred ninety-eight million, four hundred seventy-eight thousand, nine hundred forty".