1498338940 has 96 divisors (see below), whose sum is σ = 3757178880. Its totient is φ = 491049216.

The previous prime is 1498338931. The next prime is 1498338949. The reversal of 1498338940 is 498338941.

It is an interprime number because it is at equal distance from previous prime (1498338931) and next prime (1498338949).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1498338949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416389 + ... + 419971.

It is an arithmetic number, because the mean of its divisors is an integer number (39137280).

Almost surely, 2^1498338940 is an apocalyptic number.

1498338940 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 1498338940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1878589440).

1498338940 is an abundant number, since it is smaller than the sum of its proper divisors (2258839940).

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

1498338940 is a wasteful number, since it uses less digits than its factorization.

1498338940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 1498338940 is about 38708.3833297130. The cubic root of 1498338940 is about 1144.2915444779.

Subtracting from 1498338940 its reverse (498338941), we obtain a palindrome (999999999).

The spelling of 1498338940 in words is "one billion, four hundred ninety-eight million, three hundred thirty-eight thousand, nine hundred forty".