1489002261 has 8 divisors (see below), whose sum is σ = 2049379584. Its totient is φ = 960646560.

The previous prime is 1489002259. The next prime is 1489002269. The reversal of 1489002261 is 1622009841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1489002261 - 2¹ = 1489002259 is a prime.

It is a super-2 number, since 2×1489002261² = 4434255466526224242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489002269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8005296 + ... + 8005481.

It is an arithmetic number, because the mean of its divisors is an integer number (256172448).

Almost surely, 2^1489002261 is an apocalyptic number.

It is an amenable number.

1489002261 is a deficient number, since it is larger than the sum of its proper divisors (560377323).

1489002261 is a wasteful number, since it uses less digits than its factorization.

1489002261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16010811.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1489002261 is about 38587.5920601429. The cubic root of 1489002261 is about 1141.9097621422.

The spelling of 1489002261 in words is "one billion, four hundred eighty-nine million, two thousand, two hundred sixty-one".