1489849720 has 16 divisors (see below), whose sum is σ = 3352161960. Its totient is φ = 595939872.

The previous prime is 1489849693. The next prime is 1489849747. The reversal of 1489849720 is 279489841.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1489849693) and next prime (1489849747).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18623082 + ... + 18623161.

Almost surely, 2^1489849720 is an apocalyptic number.

1489849720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489849720 is an abundant number, since it is smaller than the sum of its proper divisors (1862312240).

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

1489849720 is a wasteful number, since it uses less digits than its factorization.

1489849720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37246254 (or 37246250 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 1489849720 is about 38598.5714761570. The cubic root of 1489849720 is about 1142.1263586729.

The spelling of 1489849720 in words is "one billion, four hundred eighty-nine million, eight hundred forty-nine thousand, seven hundred twenty".